"My health may be better preserved if I exert myself less, but in the end doesn't each person give his life for his calling?"

"Life is life - whether in a cat, or dog or man. There is no difference there between a cat or a man. The idea of difference is a human conception for man's own advantage"

"Plunge boldly into the thick of life, and seize it where you will, it is always interesting"

"Cats and monkeys; monkeys and cats; all human life is there"

"Telling a teenager the facts of life is like giving a fish a bath"

"It is a useless life that is not consecrated to a great ideal. It is like a stone wasted on the field without becoming a part of any edifice"

"Business is the salt of life"

"As soon as there is life there is danger"

"My one regret in life is that I am not someone else"

"There is more to life than increasing its speed"

"To get rich never risk your health. For it is the truth that health is the wealth of wealth"