A society that is not willing to demand a life of somebody who has taken somebody else’s life is simply immoral.

He who has made great moral progress ceases to pray

If it were possible for us to have so deep an insight into a man's character as shown both in inner and in outer actions, that every, even the least, incentive to these actions and all external occasions which affect them were so known to us that his future conduct could be predicted with as great a certainty as the occurrence of a solar or lunar eclipse, we could nevertheless still assert that the man is free.

For peace to reign on Earth, humans must evolve into new beings who have learned to see the whole first.

I assert that, in any particular natural science, one encounters genuine scientific substance only to the extent that mathematics is present.

Genius is the ability to independently arrive at and understand concepts that would normally have to be taught by another person.

We come no nearer the infinitude of the creative power of God, if we enclose the space of its revelation within a sphere described with the radius of the Milky Way, than if we were to limit it to a ball an inch in diameter. All that is finite, whatever has limits and a definite relation to unity, is equally far removed from the infinite... Eternity is not sufficient to embrace the manifestations of the Supreme Being, if it is not combined with the infinitude of space.