My joy in learning is partly that it enables me to teach.

It is opportunity that makes the thief.

With parsimony a little is sufficient; without it nothing is sufficient; but frugality makes a poor man rich.

Remove severe restraint and what will become of virtue?

He is ungrateful who denies that he has received a kindness which has been bestowed upon him; he is ungrateful who conceals it; he is ungrateful who makes no return for it; most ungrateful of all is he who forgets it.

Religion worships God, while superstition profanes that worship.

The mind is a matter over every kind of fortune; itself acts in both ways, being the cause of its own happiness and misery.