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

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

The greatest enemy to human potential is your comfort zone

Failure to prepare = preparing to fail

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

I think, therefore I am.

Fall down seven times, stand up eight.

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

Procrastination makes easy things hard and hard things harder.

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

The power of reflection is the most powerful skill you’ll learn.

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

You cannot escape the responsibility of tomorrow by evading it today

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

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