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

It is never too late to turn an unproductive day into a productive one.

We all have two lives. The second begins when we realise we only have one. 

He who has begun his task is half-way done. Have the courage to begin!

The greatest mistake we make is living in constant fear that we will make one.

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

Don't expect to be good at maths or understand things straight away. Be patient and persistent. The most powerful warriors are patience and time.

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

You can have results or excuses, not both

It always seems impossible until it's done.

I think, therefore I am.

There is no elevator to success, you have to take the stairs.

If you want to succeed, double your failure rate.

There are no bad mistakes in maths, only discoveries.

Everything you want is on the other side of fear