When we are not sure, we are alive. ~ Graham Greene
When nothing is sure, everything is possible. ~ Margaret Drabble
He who believes is strong; he who doubts is weak. Strong convictions precede great actions. ~ Louisa May Alcott
Certainty? In this world nothing is certain but death and taxes. ~ Benjamin Franklin
In all affairs it's a healthy thing now and then to hang a question mark on the things you have long taken for granted. ~ Bertrand Russell
The quest for certainty blocks the search for meaning. Uncertainty is the very condition to impel man to unfold his powers. ~ Erich Fromm
For my part I know nothing with any certainty, but the sight of the stars makes me dream. ~ Vincent Van Gogh
Tags: quotes on certainty, philosophy, decisions, perspective