数学的美只对那些更有耐心的追随者展示。
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.
"The world breaks everyone, and afterward, some are strong at the broken places."
Education is the foundation upon which sustainable forestry is built.