The tyranny of secrecy is the most tyrannical of all tyrannies.

The only way to do great work is to love what you do.

The so-called life, half is memory, half is to continue.

True courage is not the absence of fear, but moving forward in the face of fear.

The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.

The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

The highest goal of education is not knowledge, but action.

"The past is never dead. It's not even past."