Miguel de Cervantes

He who loses wealth loses much he who loses a friend loses more but he that loses his courage loses all.

One man scorned and covered with scars still strove with his last ounce of courage to reach the unreachable stars and the world will be better for this.

Diligence is the mother of good fortune, and idleness, its opposite, never brought a man to the goal of any of his best wishes.

Tell me thy company, and I'll tell thee what thou art.

When thou art at Rome, do as they do at Rome.