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. 

The journey of a thousand miles begins with one step. 

Failure is not the opposite of success, it is part of the success.

We learn more from failure than we do from success.

The wise person knows that no answer is also an answer

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

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.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

Hope might be a good breakfast, but it makes a very poor dinner

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

Everything you want is on the other side of fear

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.

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

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

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