Common sense is the genius of humanity.

A state of affairs which leads to daily vexation is not the right state.

Master and Doctor are my titles; for ten years now, without repose, I held my erudite recitals and led my pupils by the nose.

Happy contractedness of youth, nay, of mankind in general, that they think neither of the high nor the deep, of the true nor the false, but only of what is suited to their own conceptions.

Unrest and uncertainty are our lot.

Seize this very minute. What you can do or dream you can do, begin it. Begin it and the work will be completed

I have observed that as long as one lives and bestirs himself, he can always find food and raiment, though it may not be of the choicest description.