Napoleon Hill: "Think twice before you speak, because your words and influence will plant the seed of either success or failure in the mind of another."

Focus on your strengths instead of your weaknesses, on your powers instead of your problems.

Start before you're ready.

What you get by achieving your goals is not as important as what you become by achieving your goals.

Don’t let the fear of what could happen make nothing happen.

Do the work when the inspiration is absent. That is where the pros live.