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.

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

Time is your friend, impulse is your enemy.

The greatest glory in loving lies not in never falling, but in rising every time we fall.

Tomorrow is worth more than yesterday but less than today.

A book a day keeps the stupidity away.

The journey of a thousand miles begins with one step. 

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

Try and do one thing each day that you would really rather not do.

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

Procrastination is the thief of time and the enemy of success.

The greatest enemy to human potential is your comfort zone

Success is a journey, not a destination.

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

No one starts out on top. You have to work your way up.