We have an idea of truth, invincible to all scepticism.

There would be too great darkness, if truth had not visible signs.

A mere trifle consoles us, for a mere trifle distresses us.

l ime heals griefs and quarrels, for we change and are no longer the same persons.

Man is obviously made to think. It is his whole dignity and his whole merit.

By space the universe encompasses and swallows me up like an atom; by thought 1 comprehend the world.

There are some who speak well and write badly. For the place and the audience warm them, and draw from their minds more than they think of without that warmth.

Our soul is cast into a body, where it finds number, time, dimension. Thereupon it reasons, and calls this nature necessity, and can believe nothing else.

We are fools to depend upon the society of our fellow-men. Wretched as we are, powerless as we are, they will not aid us; we shall die alone.

Human society is founded on mutual deceit; few friendships would endure if each knew what his friend said of him in his absence.