It is better to read a little and thoroughly than cram a crude undigested mass into my head, though it be great in quantity.

Science is simply common sense at its best, that is, rigidly accurate in observation, and merciless to fallacy in logic.

There is but one right, and the possibilities of wrong are infinite.

Rome is the one great spiritual organisation which is able to resist and must, as a matter of life and death, the progress of science and modern civilization

No man is any the worse off because another acquires wealth by trade, or by the exercise of a profession; on the contrary, he cannot have acquired his wealth except by benefiting others to the extent of what they considered to be its value.

It is better to read a little and thoroughly than cram a crude undigested mass into my head, though it be great in quantity.

The only people, scientific or other, who never make mistakes are those who do nothing.