It is only necessary to have courage, for strength without self-confi… — Giacomo Casanova

Being deeply loved by someone gives you strength, while loving someone deeply gives you courage. — Lao Tzu
If you have no confidence in self, you are twice defeated in the race of life. With confidence, you have won even before you have started. — Marcus Tullius Cicero
Simulated disorder postulates perfect discipline; simulated fear postulates courage; simulated weakness postulates strength. — Lao Tzu
As to the deceit perpetrated upon women, let it pass, for, when love is in the way, men and women as a general rule dupe each other. — Giacomo Casanova
Hatred, in the course of time, kills the unhappy wretch who delights in nursing it in his bosom. — Giacomo Casanova
In fact, to gull a fool seems to me an exploit worthy of a witty man. — Giacomo Casanova