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

Failure is not the opposite of success, it is part of the success.

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

You cannot start the next chapter of your life if you keep re-reading the last one.

You're not in competition with anyone but yourself. Outdo your past, not other people.

Don’t practice until you get it right, practice until you can’t get it wrong.

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

There are no shortcuts to any place worth going.

Dreams don't work unless you do.

The journey of a thousand miles begins with one step. 

You can have results or excuses, not both

Procrastination makes easy things hard and hard things harder.

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.

99% of genius comes from hard work, the remaining 1% comes from innate talent

Shoot for the moon and even if you miss you’ll land among the stars/