The man who is a pessimist before 48 knows too much; if he is an optimist after it he knows too little. Autor: Mark Twain Copy Quote More from Mark Twain “The trouble is not in dying for a friend, but in finding a friend worth dying f…” “Do the thing you fear the most and the death of fear is certain.” “The most important days in your life are the day you were born........and the …” “One poor chap, who had no other grandeur to offer, said with tolerably manifest…”