All intellectual improvement arises from leisure.

The botanist looks upon the astronomer as a being unworthy of his regard; and he that is glowing great and happy by electrifying a bottle wonders how the world can be engaged by trifling prattle about war and peace.

To tell of disappointment and misery, to thicken the darkness of futurity, and perplex the labyrinth of uncertainty, has been always a delicious employment of the poets

No man was ever great by imitation.

It is to be steadily inculcated, that virtue is the highest proof of understanding, and the only solid basis of greatness.

Whoever thinks of going to bed before twelve o'clock is a scoundrel.

Nothing will ever be attempted if all possible objections must first be overcome.