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.

I think, therefore I am.

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

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

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

You're not in competition with anyone but yourself. Outdo your past, not other people.

Lose an hour in the morning and you will spend all day looking for it.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

Procrastination makes easy things hard and hard things harder.

The journey of a thousand miles begins with one step.

There are no shortcuts to any place worth going.

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

Your attitude is everything. Pick a good one.

Don't fear failure, fear being in the same exact same place next year as you are now.