To know oneself, one should assert oneself.

I can, therefore I am.

The secret of getting ahead is getting started.

If you think you can do it, you can.

Things do not happen. Things are made to happen.

Do not weep do not wax indignant. Understand.

Be gentle to all and stern with yourself.

Without hard work, nothing grows but weeds.

Know or listen to those who know.