You cannot become a power in your community nor achieve enduring success in any worthy undertaking until you become big enough to blame yourself for your own mistakes and reverses.

A negative attitude toward others can never bring me success.

[E]very job is composed of many small details, any one of which, if overlooked, can create big problems later.

Every failure is a blessing in disguise, providing it teaches some needed lesson one could not have learned without it. Most so-called Failures are only temporary defeats.

Don't ever admit that the world has not given you an opportunity

The world does not pay men for that which they “know”. It pays them for what they do, or induce others to do.

A man who can speak two languages is worth two men.