He who has never hoped can never despair. Ceaser and Cleopatra

No feats of heroism are needed to achieve the greatest and most important changes in the existence of humanity; neither the armament of millions of soldiers, nor the construction of new roads and machines, nor the arrangement of exhibitions, nor the organization of workmen's unions, nor revolutions, nor barricades, nor explosions, nor the perfection of aerial navigation; but a change in public opinion. Patriotism and Christianity

That man is a weakling and a degenerate who struggles and maligns the order of the universe and would rather reform the gods than reform himself. Letters from a Stoic

A man of genius makes no mistakes. His errors are volitional and are the portals of discovery. Ulysses