A person with a new idea is a crank until the idea succeeds. – Mark Twain
Prophesy is a good line of business, but it is full of risks. – Mark Twain

A person with a new idea is a crank until the idea succeeds. – Mark Twain
Prophesy is a good line of business, but it is full of risks. – Mark Twain
Everyone is a moon, and has a dark side which he never shows to anybody. – Mark Twain
Everything human is pathetic. The secret source of humor itself is not joy but sorrow. There is no humor in heaven. – Mark Twain