You ask about my opinion on vivisection. I quite agree that it is justifiable for real investigations on physiology; but not for mere damnable and detestable curiosity.

Man selects only for his own good: Nature only for that of the being which she tends.

Great is the power of steady misrepresentation; but the history of science shows that fortunately this power does not long endure.

...for the shield may be as important for victory, as the sword or spear.

I have long discovered that geologists never read each other's works, and that the only object in writing a book is a proof of earnestness.

There is no fundamental difference between humans and the higher mammalsin their mental faculties

To conclude, therefore, let no man out of a weak conceit of sobriety, or an ill-applied moderation, think or maintain, that a man can search too far or be too well studied in the book of God's word, or in the book of God's works; divinity or philosophy; but rather let men endeavour an endless progress or proficience in both."—Bacon: "Advancement of Learning".