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

No matter how bad it gets, you’re still way ahead of those who haven’t even started.

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

Tomorrow is worth more than yesterday but less than today.

99% of failures come from people who have the habit of making excuses.

The journey of a thousand miles begins with one step. 

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

Go as far as you can see, when you get there, you’ll be able to see further

We learn more from failure than we do from success.

There are no bad mistakes in maths, only discoveries.

Success is a journey, not a destination.

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

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

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.