You can be shown the path, but only you can make the first step.

It always seems impossible until it's done.

The bad news is time flies, the good new is that you're the pilot.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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

A book a day keeps the stupidity away.

If you can understand just one thing thoroughly, then you will understand everything.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

Don't fear failure, fear being in the same exact same place next year as you are now.

Everything that happens was once a dream.

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

No one starts out on top. You have to work your way up.

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.