You can easily find people who are ten times as rich at sixty as they were at twenty but not one of them will tell you that they are ten times as happy

The road to ignorance is paved with good editors.

[...] any fool can make a discovery. Every baby has to discover more in the first years of its life than Roger Bacon ever discovered in his laboratory.

General consultant to mankind.

My opportunities were still there, nay, they multiplied tenfold; but the strength and youth to cope with them began to fail, and to need eking out with the shifty cunning of experience.

Criminals do not die by the hands of the law. They die by the hands of other men.

We are compelled by the theory of God's already achieved perfection to make Him a devil as well as a god, because of the existenceof evil. The god of love, if omnipotent and omniscient, must be the god of cancer and epilepsy as well.... Whoever admits that anything living is evil must either believe that God is malignantly capable of creating evil, or else believe that God has made many mistakes in His attempts to make a perfect being.