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

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

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

The temptation to quit will be the greatest when you are about to succeed

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

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

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

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

The journey of a thousand miles begins with one step.

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

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

The journey of a thousand miles begins with one step. 

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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

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