While we've youth in our hearts, we can never grow old.
Beware of making your moral staple consist of the negative virtues.
Nothing is so commonplace has the wish to be remarkable.
Every now and then a man's mind is stretched by a new idea or sensation, and never shrinks back to its former dimensions.
The greatest act of faith is when a man understands he is not God.
History has to be rewritten because history is the selection of those threads of causes or antecedents that we are interested in.