What has destroyed every previous civilization has been the tendency to the unequal distribution of wealth and power.

The challenge is not just to collect data, but to make sense of it in ways that improve lives.

Life is not about waiting for the storms to pass, it's about learning how to dance in the rain.

"The best way to find yourself is to lose yourself in the service of others."

The writer must be a smuggler of truths, a clandestine agent of freedom.

"The world is full of obvious things which nobody by any chance ever observes."

解释：先前所使用的，现在或许要抛弃。现在要抛弃的，将来或许会用到。