The test of leadership is not to put greatness into humanity but to elicit it for the greatness is already there.
To know that we know what we know and to know that we do not know what we do not know that is true knowledge.
So far as hypotheses are concerned let no one expect anything certain from...
I am aware that a philosopher's ideas are not subject to the judgment of...
So influenced by these advisors and this hope I have at length allowed my...
Nothing is so threatening to conventional values as a man who does not...
Ignorance more frequently begets confidence than does knowledge: it is...
No thief, however skillful, can rob one of knowledge, and that is why...
