You never know what motivates you.
Only the educated are free.
Problems are not stop signs, they are guidelines.
Go for it now. The future is promised to no one.
Without hard work, nothing grows but weeds.
Be kind whenever possible. It is always possible.
Never complain and never explain.
Who seeks shall find.
To be a good loser is to learn how to win.
Quality is not an act, it is a habit.
All the mathematical sciences are founded on relations between physical laws and laws of numbers, so that the aim of exact science is to reduce the problems of nature to the determination of quantities by operations with numbers.