The development of computational complexity theory has shown us that not all problems are created equal.

The best way to be happy is to make others happy.

Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.

The secret of change is to focus all of your energy not on fighting the old, but on building the new.

Rule of 3 in conversation. To get to the real reason， ask a person to go deeper than what they just said. Then again， and once more. The third time’s answer is close to the truth.