The only way to do great work is to love what you do.
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。
The only learning which significantly influences behavior is self-discovered, self-appropriated learning.
A true scientist does not seek fame or fortune, but seeks the truth.