The real struggle is not between good and evil but between pain and pleasure.

The best preparation for tomorrow is doing your best today.

The hard problem of consciousness is the problem of explaining how and why physical processes in the brain give rise to subjective experience.

过去总是在我们的生活中存在，塑造我们是谁以及我们如何看待世界。

能源生产的效率是可持续发展的基石。