The uniform， constant， and uninterrupted effort of every man to better his condition， the principle from which public and national as well as private opulence is originally derived.
成功的关键是专注于目标，而不是障碍。
Good and great are seldom in the same man.
我认为目标永远不应该容易，它们应该迫使你努力，即使当时让你感到不舒服。
The only limit to our realization of tomorrow will be our doubts of today.