People are afraid to pursue their most important dreams, because they feel that they don't deserve them, or that they'll be unable to achieve them. We, their hearts, become fearful just thinking of loved ones who go away forever, or of moments that could have been good but weren't, or of treasures that might have been found but were forever hidden in the sands.

The best scientists are those who remain humble in the face of the unknown.

在危机时刻，透明度建立信任。

我们对月球表面的了解比对海底的了解还要多。