In looking for people to hire, look for three qualities: integrity, intelligence and energy. And if they don't have the first, the other two will kill you.
The reasonable man adapts himself to the world; the unreasonable one persists to adapt the world to himself. Therefore all progress depends on the unreasonable man.
I never could have done what I have done without the habits of punctuality, order, and diligence, without the determination to concentrate myself on one subject at a time.