"I have long considered it one of God's greatest mercies that the future is hidden from us. If it were not, life would surely be unbearable"

"The tiger is a magnificent creature and one that is threatened by human activities on all fronts. It is up to us to protect this iconic species and ensure that it has a future in the wild"

"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"

"Forget the past - the future will give you plenty to worry about"

"Every time I see an adult on a bicycle, I no longer despair for the future of the human race"

"As soon as there is life there is danger"