"I own that I cannot see as plainly as others do, and as I should wish to do, evidence of design and beneficence on all sides of us. There seems to me too much misery in the world. I cannot persuade my…"

"I have tried to be a good boy, and I have done my best."

"He who understands baboon would do more towards metaphysics than Locke."

"If I had my life to live over again, I would have made a rule to read some poetry and listen to some music at least once every week."

"A scientific man ought to have no wishes, no affections – a mere heart of stone."