"My book collection is primarily in America, since that's where I've lived most of my 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"

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

"Some books are to be tasted, others to be swallowed, and some few to be chewed and digested"

"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"

"No two persons ever read the same book"

"As soon as there is life there is danger"

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