The best time to stop a fight is before it starts.
The best vitamin for developing friends is B1.
The best way to destroy an enemy in to make him a friend.
There is no great harm in the theorist who makes up a new theory to fit a new event. But the theorist who starts with a false theory and then sees everything as making it come true is the most dangerous enemy of human reason.
Steam was till the other day the devil which we dreaded. Every pot made by any human potter or brazier had a hole in its cover, to let off the enemy, lest he should lift pot and roof and carry the house away.
There is no Nation however small which had the right to set itself free, that has not rescued itself from the dishonour of obeying the Prince imposed by an enemy in the hour of victory.
When someone asked Abraham Lincoln, after he was elected president, what he was going to do about his enemies, he replied, "I am going to destroy them. I am going to make them my friends."