When you ascend the hill of prosperity, may you not meet a friend.

The physician who knows only medicine, knows not even medicine.

Jesus died to save men - a small thing for an immortal to do - and didn't save many, anyway. But if he had been damned for the race, that would have been act of a size proper to a god, and would have saved the whole race.

There is nothing so annoying as to have two people talking when you're busy interrupting.

The most permanent lessons in morals are those which come, not of book teaching, but of experience.

I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't...The pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.

Death is the starlit strip between the companionship of yesterday and the reunion of tomorrow.