地球及其周围的水域实际上必须具有其阴影所揭示的形状,因为它以完美的圆弧遮蔽了月亮。
I believe that if you'll just stand up and go, life will open up for you. Something just motivates you to keep moving.
The essence of philosophy is not the possession of truth but the search for truth.
In quantum mechanics, the act of measurement can change the state of the system being measured.