The greatest inventions are those inquiries which tend to increase the power of man over matter.

Nothing is more important for the public wealth than to form and train youth in wisdom and virtue. Only a virtuous people are capable of freedom.

He that is of the opinion money will do everything may well be suspected of doing everything for money.

Plough deep while sluggards sleep.

We may perhaps learn to deprive large masses of their gravity and give them absolute levity, for the sake of easy transport.

It is very imprudent to deprive America of any of her privileges. If her commerce and friendship are of any importance to you, they are to be had on no other terms than leaving her in the full enjoyment of her rights.

A lighthouse is more useful than a church.