In an expression of true gratitude, sadness is conspicuous only by its absence

Keep in mind how fast things pass by and are gone - those that are now, and those to come. Existence flows past us like a river; the "what" is in constant flux, the "why" has a thousand variations. Nothing is stable, not even what's right here. The infinity of past and future gapes before us - a chasm whose depths we cannot see.

Perhaps there are none more lazy, or more truly ignorant, than your everlasting readers.

A man must stand erect, not be kept erect by others.

Remember that very little is needed to make a happy life.

I, who have never willfully pained another, have no business to pain myself.

A man should always have these two rules in readiness. First, to do only what the reason of your ruling and legislating faculties suggest for the service of man. Second, to change your opinion whenever anyone at hand sets you right and unsettles you in an opinion, but this change of opinion should come only because you are persuaded that something is just or to the public advantage, not because it appears pleasant or increases your reputation.