“One man has enthusiasm for 30 minutes, another for 30 days, but it is the man who has it for 30 years who makes a success out of his life.
“Passion very often makes the wisest men fools, and very often too inspires the greatest fools with wit
“Love is the most terrible, and also the most generous of the passions; it is the only one which includes in its dreams the happiness of someone else.
“Without passion man is a mere latent force and possibility, like the flint which awaits the shock of the iron before it can give forth its spark
“We should employ our passions in the service of life, not spend life in the service of our passions.
“There is no passion that steals into the heart more imperceptibly and covers itself under more disguises than pride
“Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's relativity