I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That is how I refuel.
Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.
你知道的越多，你就越意識(shí)到你不知道的越多。
The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.
There is no short cut to achievement. Life requires thorough preparation.
"We are all the sum of our hesitations."