21. Life is short.

Use a sense of urgency to make the most of your time.

22. There's a lot you don't know.

If there's a task you can delegate to someone better suited for it, then do it. If there's a discussion about something you're not sufficiently knowledgeable about, resist the urge to jump in.

23. You need to be honest with yourself.

If you're going to grow as a person, it's important to see unpleasant things for what they are.

24. Happiness is a choice.

Your attitude is a decision. Choosing to be happy and optimistic, regardless of the situation, yields more success than negativity.

25. Confidence will take you places.

When you believe in yourself, others tend to believe what you have to say.

26. Everyone is afraid.

Realize that everyone is afraid of failing. The successful ones know how to accept their fears and keep anxiety from restraining them.

27. Everyone hurts.

That's why it's important to be kind to everyone. Even a small gesture of kindness can have a big impact.

28. Nothing is perfect.

Unlike in the movies, the good guys don't always win. Appreciate what you have, and you'll be stronger and happier because of it.

29. You can learn from the countless successes before you.

It's good to have heroes. Borrow liberally from their advice, and you will find what works for you.

30. Luck is the most elusive aspect of success.

It can be easy to give up when you're talented and work hard but aren't getting a break. Remember that you find good fortune by constantly moving forward.