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

The aims of scientific thought are to see the general in the particular and the eternal in the transitory.

In the conditions of modern life the rule is absolute, the race which does not value trained intelligence is doomed. Not all your heroism, not all your social charm, not all your wit, not all your victories on land or at sea, can move back the finger of fate. To-day we maintain ourselves. To-morrow science will have moved forward yet one more step, and there will be no appeal from the judgment which will then be pronounced on the uneducated.

Art attracts us only by what it reveals of our most secret self.

The 'silly question' is the first intimation of some totally novel development.

The great achievements of the past were the adventures of the past. Only the adventurous can understand the greatness of the past.

How the past perishes is how the future becomes.