It is better to have useless knowledge than to know nothing.

There are more people abusive to others than lie open to abuse themselves; but the humor goes round, and he that laughs at me today will have somebody to laugh at him tomorrow.

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

All that lies betwixt the cradle and the grave is uncertain.

Without an adversary prowess shrivels. We see how great and efficient it really is only when it shows by endurance what it is capable of.

Life without the courage for death is slavery.

You roll my log, and I will roll yours.