Do not craze yourself with thinking, but go about your business anywhere.

The finest poetry was first experience.

Magic and all that is ascribed to it is a deep presentiment of the powers of science.

Fear, when your friends say to you what you have done well, and say it through; but when they stand with uncertain timid looks of respect and half-dislike, and must suspend their judgement for years to come, you may begin to hope.

The soul refuses limits and always affirms an optimism, never a pessimism.

You must elect your work; you shall take what your brains can, and drop all the rest. Only so can that amount of vital force accumulate which can make the step from knowing to doing. No matter how much faculty of idle seeing a man has, the step from knowing to doing is rarely taken. It is a step out of a chalk circle of imbecility into fruitfulness.

When duty whispers low, Thou must, The youth replies, I can.