青春不是年华，而是心境；青春不是桃面、丹唇、柔膝，而是深沉的意志，恢宏的想象，炙热的恋情；青春是生命的深泉在涌流。
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.
我喜欢旅行，但不喜欢到达目的地。
当你最不抱期望时，研究的坚持往往会带来回报。
发现超对称将是物理学史上最伟大的成就之一。
"The past is always present in our lives, whether we acknowledge it or not."