Heart of Darkness by Joseph Conrad Chapter 2 Page 19

Yes, it was ugly enough; but if you were man enough you would admit to yourself that there was in you just the faintest trace of a response to the terrible frankness of that noise, a dim suspicion of there being a meaning in it which you — you so remote from the night of first ages — could comprehend. And why not? The mind of man is capable of anything — because everything is in it, all the past as well as all the future. What was there after all? Joy, fear, sorrow, devotion, valour, rage — who can tell? — but truth — truth stripped of its cloak of time. Let the fool gape and shudder — the man knows, and can look on without a wink. But he must at least be as much of a man as these on the shore.

He must meet that truth with his own true stuff — with his own inborn strength.