心态决定一切。你想什么，就会成为什么。
The mind is everything. What you think, you become.
Every material has its own intelligence.
A good abstraction is one that emphasizes the essential and suppresses the irrelevant.
Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.
世界充满了迹象和奇迹，但我们视而不见地经过它们。