If I might control the literature of the household, I would guarantee the well-being of Church and State.

He that gives good advice, builds with one hand; he that gives good counsel and example, builds with both; but he that gives good admonition and bad example, builds with one hand and pulls down with the other.

Great riches have sold more men than they have bought.

I loathe my own face, and I've done self-portraits because I've had nobody else to do.

It's not what we eat but what we digest that makes us strong; not what we gain but what we save that makes us rich; not what we read but what we remember that makes us learned; and not what we profess but what we practice that gives us integrity.

We rise to great heights by a winding staircase of small steps.

But by far the greatest obstacle to the progress of science and to the undertaking of new tasks and provinces therein is found in this-that men despair and think things impossible.