I have lived one hundred years; and I die with the consolation of never having thrown the slightest ridicule upon the smallest virtue.

People almost always do great things without knowing how to do them, and are quite surprised to have done them.

I detest war; it ruins conversation

Our sun enlightens the planets that belong to him; why may not every fixed star also have planets to which they give light?

To despise theory is to have the excessively vain pretension to do without knowing what one does, and to speak without knowing what one says.

A man finds no sweeter voice in all the world than that which chants his praise.

The Art of Flying is but newly invented, twill improve by degrees, and in time grow perfect; then we may fly as far as the Moon.