You can't cross the sea merely by standing and staring at the water.
即使在艰难时刻,我也努力保持积极。
Gravitational waves are a new way of observing the universe, allowing us to hear the cosmos.
我认为,一个人应该认识到现实,即使他不喜欢它;事实上,尤其是当他不喜欢它的时候。
"Truth is not always beautiful, nor beautiful words the truth."