数学的本质在于它的自由。
"The essence of mathematics lies in its freedom."
Don’t let anyone dim your light.
The great use of life is to spend it for something that will outlast it.
Music is a moral law. It gives a soul to the universe, wings to the minds, flight to the imagination, a charm to sadness, gaiety and life to everything. It is the essence of order, and leads to all that is good, just, and beautiful.