The problem of life is not to make life easier, but to make men stronger.
There is no real excellence in all this world which can be separated from right living.
No one can afford to look downward for his enjoyments.
There is no pleasure in life equal to that of the conquest of a vicious habit.
"I am not much of a mathematician," said the cigarette, "but I can add to a man's nervous troubles, I can subtract from his physical energy, I can multiply his aches and pains, I can divide his mental powers, I take interest from his work, and discount his chances for success."
No one is really miserable who has not tried to cheapen life.