《畢業生》主題歌《寂靜之聲（The Sound of Silence）》。
《寂靜之聲（The Sound of Silence）》是保羅·西蒙（Paul Simon）和阿特·加芬克爾（Art Garfunkel）合作的壹首歌曲，收錄在1964年10月19日錄制的專輯《Wednesday Morning》中。
該歌曲在1967年作為美國電影《畢業生》的主題歌，2009年作為電影《守望者》的插曲，2013年作為電影《激戰》的插曲。
《寂靜之聲》旋律飄緩低迷，歌詞充滿了壹種幻覺般的意境。細細聽來，仿佛在訴說著年輕的無助。
歌曲歌詞
《寂靜之聲》
填詞：Simon
譜曲：Simon
歌曲原唱：Paul Simon、Garfunkel
Hello darkness, my old friend,
I've come to talk with you again,
Because a vision softly creeping,
Left its seeds while I was sleeping,
And the vision that was planted in my brain
Still remains
Within the sound of silence.
In restless dreams I walk alone
Narrow streets of cobblestone,
'Neath the halo of a street lamp,
I turned my collar to the cold and damp
When my eyes were stabbed by the flash of a neon light
That split the night
And touched the sound of silence.
And in the naked light I saw
Ten thousand people, maybe more.
People talking without speaking,
People hearing without listening,
People writing songs that voices never share
And no one dared
Disturb the sound of silence.
"Fools" said I,"You do not know
Silence like a cancer grows.
Hear my words that I might teach you,
Take my arms that I might reach you."
But my words like silent raindrops fell,
And echoed
In the wells of silence
And the people bowed and prayed
To the neon god they made.
And the sign flashed out its warning,
In the words that it was forming.
And the signs said, 'The words of the prophets are written on the subway walls
And tenement halls.
And whisper'd in the sounds of silence.
以上內容參考：百度百科-《寂靜之聲》