The world is changed by your example, not by your opinion.
Often, warriors find their lives meaningless.
I was not I, I was nothing - and that seemed to me quite marvelous.
No one can hit their target with their eyes closed.
Most people see the world as a threatening place, and, because they do, the world turns out, indeed, to be a threatening place.
Postpone joy, it will diminish. Postpone a problem, it will grow.