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

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

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

The wise person knows that no answer is also an answer

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

It doesn’t matter where you start, it matters how you end

Success can never happen without the journey (struggle).

You cannot escape the responsibility of tomorrow by evading it today

Learn To Step Outside Of Your Comfort Zone. Outside your comfort zone is where the magic happens

In order to become better than anybody else you must first become better than yourself.

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

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

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

Tomorrow is worth more than yesterday but less than today.

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.