Invert, always invert: Turn a situation or problem upside down.Look at it backward.

The awful shadow of some unseen Power floats, though unseen, among us.

生命太短暂，不要浪费时间恨任何人。

Success is not final, failure is not fatal: It is the courage to continue that counts.

The robustness of topological states against local perturbations is a testament to the power of topology in protecting quantum information.