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

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

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

Everything you want is on the other side of fear

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

There are no bad mistakes in maths, only discoveries.

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

Tough times never last, but tough people do.

Time is your friend, impulse is your enemy.

I think, therefore I am.

Our fixed mindset builds our cage, fear keeps us in it.

Skills are built not born.

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

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

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.