I will not go so far as to say that to construct a history of thought without profound study of the mathematical ideas of successive epochs is like omitting Hamlet from the play which is named after him. That would be claiming too much. But it is certainly analogous to cutting out the part of Ophelia. This simile is singularly exact. For Ophelia is quite essential to the play, she is very charming . . . and a little mad.

Some of the finest moral intuitions come to quite humble people. The visiting of lofty ideas doesn't depend on formal schooling.

I would be a billionaire if I was looking to be a selfish boss. That's not me.

The absolute pacifist is a bad citizen; times come when force must be used to uphold right, justice and ideals.

The real history does not get written, because it is not in people's brains but in their nerves and vitals.

Style, in its finest sense, is the last acquirement of the educated mind; it is also the most useful. It pervades the whole being.

The only use of a knowledge of the past is to equip us for the present. The present contains all that there is. It is holy ground; for it is the past, and it is the future.