Who said "I feel the horror of the half-known life."?

This quote is attributed to Ishmael.

I feel the horror of the half-known life. - Ishmael

"I feel the horror of the half-known life."

Ishmael Fear

Character in Moby-Dick

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"Call me Ishmael."

"Some certain significance lurks in all things, else all things are little worth."

"It is the whale's intrinsic nature to be wondrous."

"Better to sleep with a sober cannibal than a drunken Christian."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."