Outer changes always begin with an inner change of attitude.

One must console oneself with the thought that time has a sieve through which most of these important things run into the ocean of oblivion and what remains after this selection is often still trite and bad.

The more I study science, the more I believe in God.

Insofar as we may at all claim that slavery has been abolished today, we owe its abolition to the practical consequences of science

Necessity is the mother of all invention.

My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind.

One who scorns the power of intuition will never rise above the ranks of journeyman calculator.