wisdom is a good purchase though we pay dear for it . 为了求知识，代价虽高也值得。
the tragedy of the world is that those who are imaginative have but slight experience, and those who are experienced have feeble imaginations. 世界的悲剧就在于有想象力又缺乏经验，而有经验的人又缺乏想象力。
the path to glory is always rugged. 通向光荣的道路常常是崎岖的。
the on-looker sees most of the game. 旁观者清。
the greatest lesson in life is to know that even fools are right sometimes. 傻瓜有时候也是对的。
the great difficulty in education is to get experience out of ideas. 教育之艰苦在于从意念中获得经验。
stick to it, and you“ll succeed. 只要人有恒，万事都能成。