Enthusiasm is one of the most powerful engines of success. When you do a thing, do it with all your might.

Every industrious man, in every lawful calling, is a useful man. And one principal reason why men are so often useless is that they neglect their own profession or calling, and divide and shift their attention among a multiplicity of objects and pursuits.

We are like travellers using the cinders of a volcano to roast their eggs. Whilst we see that it always stands ready to clothe what we would say, we cannot avoid the question whether the characters are not significant of themselves.

The laws of light and of heat translate each other;-so do the laws of sound and colour; and so galvanism, electricity and magnetism are varied forms of this selfsame energy.

In dealing with the State, we ought to remember that its institutions are not aboriginal, though they existed before we were born; that they are not superior to the citizen; that every one of them was once the act of a single man; every law and usage was a man's expedient to meet a particular case; that they all are imitable, all alterable; we may make as good; we may make better.

The lover is made happier by his love than the object of his affection.

Explore, and explore, and explore. Be neither chided nor flattered out of your position of perpetual inquiry. Neither dogmatise yourself, nor accept another's dogmatism. Why should you renounce your right to traverse the star-lit deserts of truth, for the premature comforts of an acre, house, and barn? Truth also has its roof, and bed, and board. Make yourself necessary to the world, and mankind will give you bread, and if not store of it, yet such as shall not take away your property in all men's possessions, in all men's affections, in art, in nature, and in hope.