rest　contented　with　any　circle　of　ideas；　but　always　be　certain　that　a　wider
  one　is　still　possible。　For　my
  thought　is　like　a　hyperbola　that　continually　widens　ascending。
  For　grief　there　is　no　known　consolation。　It　is　useless　to　fill　our　hearts
  with　bubbles。　A　loved　one　gone　is　gone；　and　as　to　the　futureeven　if　there
  is　a　futureit　is　unknown。　To　assure　ourselves　otherwise　is　to　soothe　the
  mind　with　illusions；　the　bitterness　of　it　is　inconsolable。　The　sentiments　of
  trust　chipped　out　on　tombstones　are　touching　instances　of　the　innate
  goodness　of　the　human　heart；　which　naturally　longs　for　good；　and　sighs
  itself　to　sleep　in　the　hope　that；　if　parted；　the　parting　is　for　the　benefit
  of　those　that　are　gone。　But　these　inscriptions　are　also　awful　instances　of
  the　deep　intellectual　darkness　which　presses　still　on　the　minds　of　men。　The
  least　thought　erases　them。　There　is　no　consolation。　There　is　no　relief。
  There　is　no　hope　certain；　the　whole　system　is　a　mere　illusion。　I；　who　hope
  so　much；　and　am　so　rapt　up　in　the　soul；　know　full　well　that　there　is　no
  certainty。
  The　tomb　cries　aloud　to　usits　dead　silence　presses　on　the　drum
  of　the　ear　like　thunder；　saying；　Look　at　this；　and　erase　your
  illusions；　now　know　the　extreme　value　of　human　life；　reflect　on
  this　and　strew　human　life　with　flowers；　save　every　hour　for　the
  sunshine；　let　your　labour　be　so　ordered　that　in　future　times　the　loved　ones
  may　dwell　longer　with　those　who　love　them；　open　your
  minds；　exalt　your　souls；　widen　the　sympathies　of　your　hearts；
  face　the　things　that　are　now　as　you　will　face　the　reality　of　death；　make　joy
  real　now　to　those　you　love；　and　help　forward　the　joy　of　those　yet　to　be
  born。　Let　these　facts　force　the　mind　and　the　soul　to　the　increase　of
  thought；　and　the　consequent　remission　of　misery；　so　that　those　whose　time　it
  is　to　die　may　have　enjoyed　all　that　is　possible　in　life。　Lift　up　your　mind
  and　see　now　in　this　bitterness　of　parting；　in　this　absence　of　certainty；　the
  fact　that　there　is　no　directing　intelligence；　remember　that　this　death　is
  not　of　old　age；　which　no　one　living　in　the　world　has　ever　seen；　remember
  that　old　age　is　possible；　and　perhaps　even　more　than　old　age；　and　beyond
  these　earthly　things…what？　　　None　know。　But　let　us；　turning　away　from　the
  illusion　of　a　directing　intelligence；　look　earnestly　for　something　better
  than　a　god；　seek　for　something　higher　than
  prayer；　and　lift　our　souls　to　be　with　the　more　than　immortal
  now。
  A　river　runs　itself　clear　during　the　night；　and　in　sleep
  thought　becomes　pellucid。　All　the　hurrying　to　and　fro；　the
  unrest　and　stress；　the　agitation　and　confusion　subside。　Like　a
  sweet　pure　spring；　thought　pours　forth　to　meet　the　light；　and
  is　illumined　to　its　depths。　The　dawn　at　my　window　ever　causes
  a　desire　for　larger　thought；　the　recognition　of　the　light　at
  the　moment　of　waking　kindles　afresh　the　wish　for　a　broad　day　of
  the　mind。　There　is　a　certainty　that　there　are　yet　ideas　further；　and
  greaterthat　there　is　still　a　limitless　beyond。　I　know　at　that　moment　that
  there　is　no　limit　to　the　things　that　may　be　yet　in　material　and　tangible
  shape　besides　the　immaterial　perceptions　of　the　soul。　The　dim　white　light　of
  the　dawn　speaks　it。　This　prophet　which　has　come　with　its　wonders　to　the
  bedside　of　every　human　being　for　so　many　thousands　of　years　faces　me　once
  again　with　the　upheld　finger　of　light。　Where　is　the　limit　to　that　physical
  sign？
  》From　space　to　the　sky；　from　the　sky　to　the　hills；　and　the　sea；
  to　every　blade　of　grass；　to　every　leaf；　to　the　smallest　insect；
  to　the　million　waves　of　ocean。　Yet　this　earth　itself　appears
  but　a　mote　in　that　sunbeam　by　which　we　are　conscious　of　one
  narrow　streak　in　the　abyss。　A　beam　crosses　my　silent　chamber
  from　the　window；　and　atoms　are　visible　in　it；　a　beam　slants
  between　the　fir…trees；　and　particles　rise　and　fall　within；　and　cross　it
  while　the　air　each　side　seems　void。　Through　the　heavens　a　beam　slants；　and
  we　are　aware　of　the　star…stratum　in　which　our　earth　moves。　But　what　may　be
  without　that　stratum？　Certainly　it　is　not　a　void。　This　light　tells　us　much；
  but　I　think　in　the　course　of　time　yet　more　delicate　and　subtle　mediums　than
  light　may　be　found；　and　through　these　we　shall　see　into　the　shadows　of　the
  sky。　When　will　it　be　possible　to　be　certain　that　the　capacity　of　a　single
  atom　has　been　exhausted？　At　any　moment　some　fortunate　incident　may　reveal　a
  fresh　power。　One　by　one　the　powers　of　light　have　been　unfolded。
  After　thousands　of　years　the　telescope　opened　the　stars；　the
  prism　analysed　the　substance　of　the　sun；　the　microscope　showed
  the　minute　structure　of　the　rocks　and　the　tissues　of　living
  bodies。　The　winged　men　on　the　Assyrian　bas…reliefs；　the　gods　of
  the　Nile；　the　chariot…borne　immortals　of　Olympus；　not　the
  greatest　of　imagined　beings　ever　possessed　in　fancied　attributes
  one…tenth　the　power　of　light。　As　the　swallows　twitter；　the　dim
  white　finger　appears　at　my　window　full　of　wonders；　such　as　all
  the　wise　men　in　twelve　thousand　precedent　years　never　even　hoped
  to　conceive。　But　this　is　not　alllight　is　not　all；　light　conceals　more　than
  it　reveals；　light　is　the　darkest　shadow　of　the　sky；　besides　light　there　are
  many　other　mediums　yet　to　be　explored。　For　thousands　of　years　the　sunbeams
  poured　on　the　earth；　full　as　now　of　messages；　and　light　is　not　a　hidden
  thing　to　be　searched　out　with　difficulty。　Full　in　the　faces　of　men　the　rays
  came　with　their　intelligence　from　the　sun　when　the　papyri　were　painted
  beside　the　ancient　Nile；　but　they　were　not　understood。
  This　hour；　rays　or　undulations　of　more　subtle　mediums　are
  doubtless　pouring　on　us　over　the　wide　earth；　unrecognised；　and
  full　of　messages　and　intelligence　from　the　unseen。　Of　these　we
  are　this　day　as　ignorant　as　those　who　painted　the　papyri　were　of
  light。　There　is　an　infinity　of　knowledge　yet　to　be　known；　and
  beyond　that　an　infinity　of　thought。　No　mental　instrument　even　has　yet　been
  invented　by　which　researches　can　be　carried　direct　to　the　object。　Whatever
  has　been　found　has　been　discovered　by　fortunate　accident；　in　looking　for　one
  thing　another　has　been　chanced　on。　A　reasoning　process　has　yet　to　be
  invented　by　which　to　go　straight　to　the　desired　end。　For　now　the　slightest
  particle　is　enough　to　throw　the　search　aside；　and　the　most　minute
  circumstance　sufficient　to　conceal　obvious　and　brilliantly　shining　truths。
  One　summer　evening　sitting　by　my　window　I　watched　for　the　first　star　to
  appear；　knowing　the　position　of　the　brightest　in　the　southern　sky。　The　dusk
  came　on；　grew　deeper；　but　the　star　did　not　shine。　　By…and…by；　other　stars
  less　bright　appeared；　so　that　it　could　not　be　the　sunset　which　obscured　the
  expected　one。　　Finally；　I　considered　that　I　must　have　mistaken　its　position；
  when　suddenly　a　puff　of　air　blew　through　the　branch　of　a　pear…tree　which
  overhung　the　window；　a　leaf　moved；　and　there　was　the　star　behind　the　leaf。
  At　present　the　endeavour　to　make　discoveries　is　like　gazing　at
  the　sky　up　through　the　boughs　of　an　oak。　Here　a　beautiful　star
  shines　clearly；　here　a　constellation　is　hidden　by　a　branch；　a
  universe　by　a　leaf。　Some　mental　instrument　or　organon　is
  required　to　enable　us　to　distinguish　between　the　leaf　which　may
  be　removed　and　a　real　void；　when　to　cease　to　look　in　one　direction；　and　to
  work　in　another。　Many　men　of　broad　brow　and　great　intellect　lived　in　the
  days　of　ancient　Greece；　but　for　lack　of　the　accident　of　a　lens；　and　of
  knowing　the　way　to　use　a　prism；　they　could　but　conjecture　imperfectly。　I　am
  in　exactly　the　position　they　were　when　I　look　beyond　light。　Outside　my
  present　knowledge　I　am　exactly　in　their　condition。　I　feel　that　there　are
  infinities　to　be　known；　but　they　are　hidden　by
  a　leaf。　If　any　one　says　to　himself　that　the　telescope；　and　the　microscope；
  the　prism；　and　other　discoveries　have　made　all　plain；　then　he　is　in　the
  attitude　of　those　ancient　priests　who　worshipped　the　scarabaeus　or　beetle。
  So；　too；　it　is　with　thought；　outside　our　present　circle　of　ideas　I　believe
  there　is　an　infinity　of　idea。　　All　this　that　has　been　effected　with　light
  has　been　done　by　bits　of　glassmere　bits　of　shaped　glass；　quickly　broken；
  and　made　of　flint；　so　that　by　the　rude　flint　our　subtlest　ideas　are　gained。
  Could　we　employ　the　ocean　as　a　lens；　and　force　truth　from　the　sky；　even　then
  I　think　there　would　be　much　more　beyond。
  Natural　things　are　known　to　us　only　under　two　conditionsmatter
  and　force；　or　matter　and　motion。　A　third；　a　fourth；　a　fifthno
  one　can　say　how　many　conditionsmay　exist　in　the　ultra…stellar
  space；　and　such　other　conditions　may　equally　exist　about　us　now
  unsuspected。　Something　which　is　neither　matter　nor　force　is　difficult　to
  conceive；　yet；　I　think；　it　is　certain　that　there　are　other　conditions。　When
  the　mind　succeeds　in　entering　on　a　wider　series；　or　circle　of　ideas；　other
  conditions　would　appear
  natural　enough。　In　this　effort　upwards　I　claim　the　assistance
  of　the　soulthe　mind　of　the　mind。　The　eye　sees；　the　mind
  deliberates　on　what　it　sees；　the　soul　understands　the　operation
  of　the　mind。　Before　a　bridge　is　built；　or　a　structure　erected；
  or　an　interoceanic　canal　made；　there　must　be　a　plan；　and　before
  a　plan　the　thought　in　the　mind。　So　that　it　is　correct　to　say
  the　mind　bores　tunnels　through　the　mount