Success is not final and failure is not fatal. It is the courage to continue that counts.

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

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

There is great wisdom in being able to realise that you don’t understand something before it goes too far.

Success can never happen without the journey (struggle).

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.

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

Don’t be afraid to work hard and find out how good you can really be.

Do what you have always done and you will always be what you have always been

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

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

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

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

Don't fear failure, fear being in the same exact same place next year as you are now.