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

Tough times never last, but tough people do.

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

Time is your friend, impulse is your enemy.

The journey of a thousand miles begins with one step. 

Procrastination makes easy things hard and hard things harder.

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

Patience is when you’re supposed to get mad, but you choose to understand

Run in the morning before your body figures out what you're doing

The temptation to quit will be the greatest when you are about to succeed

Practice like you’ve never won. Perform like you’ve never lost.

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

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

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

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