We have grown literally afraid to be poor. We despise anyone who elects to be poor in order to simplify and save his inner life. If he does not join the general scramble and pant with the money-making street, we deem him spiritless and lacking in ambition

So far war has been the only force that can discipline a whole community, and until an equivalent discipline is organized, I believe that war must have its way.

A man of sense is never discouraged by difficulties; he redoubles his industry and his diligence, he perseveres and infallibly prevails at last.

The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.

An idea will infect another with its own emotional interest when they have become both associated together into any sort of a mental total.

There is nothing so absurd that it cannot be believed as truth if repeated often enough.

I myself believe that the evidence for God lies primarily in inner personal experiences.