你为某件事付出的努力越多,实现时的成就感就越大。
寻找万物理论是现代物理学中最令人兴奋和最具挑战性的追求之一。
Sometimes the hardest part of the journey is believing you're worthy of the trip.
凡是创作古文,必须推究前代文章的本意,以此形成自己的言论。
The world of experience is produced by the man who experiences it.