One should conquer the world, not to enthrone a man, but an idea; for ideas exist forever.

Never apologize for showing feeling. When you do so, you apologize for the truth.

The secret of success is constancy of purpose.

Cleanliness and order are not matters of instinct; they are matters of education, and like most great things, you must cultivate a taste for them.

Nurture your mind with great thoughts, for you will never go any higher than you think.

Action may not always bring happiness; but there is no happiness without action.

Courage is fire, and bullying is smoke.

One secret of success in life is for a man to be ready for his opportunity when it comes.

Time is precious, but truth is more precious than time.

Never complain and never explain.

Finality is not the language of politics.

For an illuminated life, give yourself up for the service of others.

Ever notice that Soup for One is eight aisles away from Party Mix?

The Russians did much bigger space launch vehicles for launching satellites and for getting men in orbit. They did that much sooner than America because America was very good at something else.

It's a different thing shooting for 10 weeks in India as opposed to on a set on stage pretending you're in India.

I wake up in the morning, walk downstairs, and just bang on the piano and write about what's going on in the world around me.

Thank God for the tough times. They are the reason you are there - to be the leader. If everything was going well, the people wouldn't need you!

Don't be arrogant, because arrogance kills curiosity and passion.

The Bible is the book of my life. It's the book I live with, the book I live by, the book I want to die by.

Eminem's 'Lose Yourself' is my go-to song to pump myself up if I'm having a tough time or if I get really nervous right before a speech.

Mindful that it's running out, I am determined to have the time of my life.