I can, therefore I am.

Know or listen to those who know.

Quality is not an act, it is a habit.

To know oneself, one should assert oneself.

By failing to prepare, you are preparing to fail.

Do not weep do not wax indignant. Understand.

The dog that trots about finds a bone.

Expect problems and eat them for breakfast.

The secret of getting ahead is getting started.