数学的目标不是解决问题，而是理解问题。
The goal of mathematics is not to solve problems, but to understand them.
The Moving Finger writes; and, having writ, Moves on: nor all thy Piety nor Wit Shall lure it back to cancel half a Line, Nor all thy Tears wash out a Word of it.
Dreams are not unreachable, as long as you are willing to chase them.
The future belongs to those who believe in the beauty of their dreams.
The only way to do great work is to love what you do.
Sustainability is not just a trend, it's a responsibility we owe to future generations.
People, even more than things, have to be restored, revived, reclaimed and redeemed;never throw out anyone.
