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.

I think a compliment ought always to precede a complaint, where one is possible, because it softens resentment and insures for the complaint a courteous and gentle reception.

A woman springs a sudden reproach upon you which provokes a hot retort, and then she will presently ask you to apologize.

I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it.

God, so atrocious in the Old Testament, so attractive in the New--the Jekyl and Hyde of sacred romance.

Of all God's creatures, there is only one that cannot be made slave of the leash. That one is the cat. If man could be crossed with the cat it would improve the man, but it would deteriorate the cat.

A lie can make it half way around the world before the truth has time to put its boots on.