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

Failure is NOT your destiny. Failure is the key to success.

Pure mathematics is in its way, the poetry of logical ideas.

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

Your attitude is everything. Pick a good one.

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

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

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

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

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

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 journey of a thousand miles begins with one step.

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

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

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