It is the duty of a student to get everything out of a teacher， and the duty of a teacher to get everything out of a student.
赏析：通过忘记脚、忘记腰、忘记是非纠纷来说明内心的舒适和自在，强调了要放下杂念和纷争，保持内心的平静。
几何学是关于永恒存在的知识。
The poor are often more entrepreneurial than the rich, but they lack the tools to succeed.
可持续性必须是现代采石场运营的基石，而非事后考虑。
捕鱼技术的创新必须与保护工作齐头并进。它们不是对立的力量，而是互补的力量。
The best time to start thinking about your future is now.
