"Establish specific objectives, and move steadily toward them. A rudder won't control a drifting boat; it must be underway. Similarly, you need to be moving forward to gain control of your life."

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The main thing is to be honest with yourself, know and recognize your limits and attain maximum achievement within them. I would for example get more satisfaction from climbing Snowdon, which I know I could, than from attempting Everest, which I couldn't.

— Stirling Moss