The universe could have started in a very smooth and uniform state, and then evolved into the complex and structured cosmos we see today.

We must mine coal responsibly today so that our children inherit both energy security and a healthy environment.

A poet's work is to name the unnameable, to point at frauds, to take sides, start arguments, shape the world, and stop it going to sleep.

"The measure of a civilization is how it treats its weakest members."

The brain is a complex and dynamic system, and understanding it requires a multidisciplinary approach.

没有青春的爱情有何滋味？没有爱情的青春有何意义？