No man can become rich without himself enriching others

Don't be content with doing only your duty. Do more than your duty. It's the horse that finishes a neck ahead that wins the race.

To kill a man will be considered as disgusting [in the twentieth century] as we in this day consider it disgusting to eat one.

The greatest astonishment of my life was the discovery that the man who does the work is not the man who gets rich

I wish to have as my epitaph: 'Here lies a man who was wise enough to bring into his service men who knew more than he.'

The secret of happiness is renunciation.

Men who reach decisions promptly usually have the capacity to move with definiteness of purpose in other circumstances.