There is no elevator to success, you have to take the stairs.

Don’t be afraid to work hard and find out how good you can really be.

Just stick with it, what seems hard now will one day be your warm up.

Everything that happens was once a dream.

The greatest mistake we make is living in constant fear that we will make one.

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

Never underestimate the importance of small steps. small steps = big changes. 

It always seems impossible until it's done.

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

We learn more from failure than we do from success.

The greatest glory in loving lies not in never falling, but in rising every time we fall.

Failure is NOT your destiny. Failure is the key to success.

Success can never happen without the journey (struggle).

It is never too late to turn an unproductive day into a productive one.

Don’t compare yourself to others. Compare yourself to the person you were yesterday.