A great secret of success is to go through life as a man who never gets used up.
A man does not have to be an angel in order to be saint.
Man has the lost the capacity to foresee and to forestall. He will end up destroying the earth.
My life is my argument.
The only thing of importance, when we depart, will be the traces of love we have left behind.
Whatever you have received more than others in health, in talents, in ability, in success, in a pleasant childhood, in harmonious conditions of home life, all this you must not take to yourself as a matter of course. You must pay a price for it. You must render in return an unusually great sacrifice of your life for other life.