This desire of knowledge and the wonder which it hopes to satisfy are the driving power behind all the changes that we, with careless, question-begging inference, call progress.

The epitaphs on tombstones of a great many people should read: Died at thirty, and buried at sixty.

The analytical geometry of Descartes and the calculus of Newton and Leibniz have expanded into the marvelous mathematical method

Businesses planned for service are apt to succeed businesses planned for profit are apt to fail.

I divide the world into three Classes - The few who make things happen, the many who watch things happen, the overwhelming majority who have no notion of what happens.

Persecution on racial and religious grounds has absolutely no place in a nation given over to liberty.

This desire of knowledge and the wonder which it hopes to satisfy are the driving power behind all the changes that we, with careless, question-begging inference, call progress.