"The whole order of nature evinces a progressive march towards a higher life"

"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"

"The art of medicine consists in amusing the patient while nature cures the disease"

"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"

"Sex is a part of nature. I go along with nature"

"As soon as there is life there is danger"

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