The discovery of 51 Pegasi b was a turning point in astronomy, proving that planets could exist around sun-like stars.
你必须足够坚强才能独自站立,足够聪明才能知道何时需要帮助,足够勇敢才能寻求帮助。
君子重视自身的努力,而不羡慕上天的恩赐;小人放弃自身的努力,而羡慕上天的恩赐。