Sustainability is not just about protecting the environment, it's about creating a system that works for everyone.

The study of computational complexity is not just about classifying problems; it is about understanding the nature of computation itself.

Handy measure: the distance between your fingertips of your outstretched arms at shoulder level is your height.

The real tragedy of the poor is that they can do nothing but wait for the rich to give them something.

Leadership is about serving others and helping them achieve their potential.

微：小。邪：邪恶，坏事。小的坏事，是大坏事产生的根源。量的渐变必然导致质的突变。小事不注意，必铸成大错。