“You never know what you can do until you try, and very few try unless they have to.”

“And that's why, gentleman, if your little girl doesn't come up to scratch, it will be our painful duty to cut all your throats. Merely in a way of business, as you might say, and no offense, I hope.”

“Nothing which is at all times and in every way agreeable to us can have objective reality. It is of the very nature of the real that it should have sharp corners and rough edges, that it should be resistant, should be itself. Dream-furniture is the only kind on which you never stub your toes or bang your knee.”

“A sensible human once said, "If people knew how much ill-feeling unselfishness occasions, it would not be so often recommended from the pulpit"; and again, "She's the sort of woman who lives for others you can always tell the others by their hunted expression.”

“Virtue - even attempted virtue - brings light; indulgence brings fog.”

“I suppose an entire cabinet of shells would be an expression of the whole human mind; a Flora of the whole globe would be so likewise, or a history of beasts; or a painting of all the aspects of the clouds. Everything is significant.”

“We admit, in geometry, not only infinite magnitudes, that is to say, magnitudes greater than any assignable magnitude, but infinite magnitudes infinitely greater, the one than the other. This astonishes our dimension of brains, which is only about six inches long, five broad, and six in depth, in the largest heads.”

“Old heads as well as young may sometimes be charged with ignorance and presumption. The natural course of the human mind is certainly from credulity to skepticism.”