A closed mouth catches no flies.

I can tell where my own shoe pinches me.

Folly is wont to have more followers and comrades than discretion.

For a man to attain to an eminent degree in learning costs him time, watching, hunger, nakedness, dizziness in the head, weakness in the stomach, and other inconveniences.

For the army is a school in which the miser becomes generous, and the generous prodigal; miserly soldiers are like monsters, but very rarely seen.

It is a true saying that a man must eat a peck of salt with his friend before he knows him.

Our greatest foes, and whom we must chiefly combat, are within.