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

Knowledge is of no value unless you put it into practice.

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

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

Success can never happen without the journey (struggle).

Never let a dark chapter make you forget that better days are ahead of you. Your story is far from over.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

Success is a journey, not a destination.

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.

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

Failure to prepare = preparing to fail

If you fail, next time fail better.

Everything that happens was once a dream.

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. 

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