Know or listen to those who know.

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

Problems are not stop signs, they are guidelines.

By failing to prepare, you are preparing to fail.

Leap, and the net will appear.

I can, therefore I am.

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

To know oneself, one should assert oneself.

The dog that trots about finds a bone.