Freedom is only granted us that obedience may be more perfect.

Let every dawn be to you as the beginning of life, and every setting sun be to you as its close.

Labor rids us of three great evils; tediousness, vice, and poverty.

To be able to ask a question clearly is two-thirds of the way to getting it answered.

My entire delight was in observing without being myself noticed,- if I could have been invisible, all the better. . . to be in the midst of it, and rejoice and wonder at it, and help it if I could, - happier if it needed no help of mine, - this was the essential love of Nature in me, this the root of all that I have usefully become, and the light of all that I have rightly learned.

There is nothing that this age, from whatever standpoint we survey it, needs more, physically, intellectually, and morally, than thorough ventilation.

Better the rudest work that tells a story or records a fact, than the richest without meaning.