解析：菩提比喻智慧，明镜比喻清净心。本来清净，又哪里会染上什么尘埃？

比起目的地，我对旅程更感兴趣。

Investors should avoid making decisions based on short-term market movements.

Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.

独裁统治的最佳武器是保密，但民主的最佳武器应该是开放的武器。

穷人的时间总被廉价出售，却永远买不到时间。

Collaboration across nations is key to preserving marine ecosystems.