You have to believe in yourself when no one else does.
Health is not a privilege of the rich, but a vulnerability of the poor.
系外行星的发现为我们打开了探索宇宙的新窗口,让我们能够探索太阳系之外的世界。
在数学中,提出问题的艺术必须比解决问题更有价值。
好奇心和坚持是科学突破背后的驱动力。
The key to success is to focus on goals, not obstacles.
Psychology must avoid all forms of mentalism.