Nobody said it’d be easy, they just promised it would be worth it.

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

Whenever you find yourself doubting how far you can go, just remember how far you have come.

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

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

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

Time is your friend, impulse is your enemy.

There are no shortcuts to any place worth going.

We all have two lives. The second begins when we realise we only have one. 

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

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

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

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

Start, struggle, fail, fix and learn. Repeat.

Knowledge is of no value unless you put it into practice.