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

There are no bad mistakes in maths, only discoveries.

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

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

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

Tough times never last, but tough people do.

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

The road to success is like a staircase. If you want to succeed, double your failure rate

You can have results or excuses, not both

I think, therefore I am.

The journey of a thousand miles begins with one step. 

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

He who has begun his task is half-way done. Have the courage to begin!

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

Just stick with it, what seems hard now will one day be your warm up.