There are no bad mistakes in maths, only discoveries.

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

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

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

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

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

Hard work beats talent when talent doesn't work hard.

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

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

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

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

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

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

It always seems impossible until it's done.