"Heredity is what sets the parents of a teenager wondering about each other." ― Laurence J. Peter Topic(s): Science More From Laurence J. Peter "Every girl should use what Mother Nature gave her before Father Time takes it away." "Originality is the fine art of remembering what you hear but forgetting where you heard it." "A man doesn’t know what he knows until he knows what he doesn’t know." More In Science "If an elderly but distinguished scientist says that something is possible, he is almost certainly right; but if he says that it is impossible, he is very probably wrong."― Arthur C. Clarke "Science means simply the aggregate of all the recipes that are always successful. All the rest is literature."― Paul Valery "Even if I knew that tomorrow the world would go to pieces, I would still plant my apple tree."― Martin Luther