You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

Failure to prepare = preparing to fail

Time is your friend, impulse is your enemy.

The greatest enemy to human potential is your comfort zone

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

The journey of a thousand miles begins with one step.

Success is the sum of small repeated efforts, day in and day out.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

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

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

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. 

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

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

Your attitude is everything. Pick a good one.