We are all ready to be savage in some cause. The difference between a good man and a bad one is the choice of the cause.

Most men have a good memory for facts connected with their own pursuits.

If an unusual necessity forces us onward, a surprising thing occurs. The fatigue gets worse up to a certain point, when, gradually or suddenly, it passes away and we are fresher than before!

Success or failure depends more upon attitude than upon capacity.

The god whom science recognizes must be a God of universal laws exclusively, a God who does a wholesale, not a retail business. He cannot accommodate his processes to the convenience of individuals.

To be fertile in hypotheses is the first perquisite of creativity and to be willing to throw them away the moment experience contradicts them is the next.

The discovery of the power of our thoughts will prove to be the most important discovery of our time