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

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

There are no shortcuts to any place worth going.

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

Hard work - a two way street where you get exactly what you put in.

Failure to prepare = preparing to fail

You cannot escape the responsibility of tomorrow by evading it today

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

Fall down seven times, stand up eight.

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

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

It doesn’t matter where you start, it matters how you end

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

A hero is no braver than an ordinary man, but he is braver five minutes longer.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.