Pure mathematics is in its way, the poetry of logical ideas.

Dreams don't work unless you do.

It always seems impossible until it's done.

In order to become better than anybody else you must first become better than yourself.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

Time is your friend, impulse is your enemy.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

We learn more from failure than we do from success.

Everything you want is on the other side of fear

It is never too late to become what you might have been

Your attitude is everything. Pick a good one.

When you make a mistake, take another chance. Only when you choose not to do so do you fail.

Never let a dark chapter make you forget that better days are ahead of you. Your story is far from over.

Hope might be a good breakfast, but it makes a very poor dinner

I can is 100 times more important than IQ.