Know or listen to those who know.

The wise does at once what the fool does at last.

Be gentle to all and stern with yourself.

Be thine own palace, or the world's thy jail.

By failing to prepare, you are preparing to fail.

You never know what motivates you.

If you're going through hell, keep going.

Problems are not stop signs, they are guidelines.

The dog that trots about finds a bone.