Do not bring down the men of the magistrates' court or incite the just men to rebel.  Do not pay too much attention to him clad in shining garments, and have regard for him who is shabbily dressed.  Do not accept the reward of the powerful man or persecute the weal for him.

Advice from fathers to sons in Middle Kingdom Egypt as quoted by Charles Freeman in Egypt, Greece and Rome. 

Everything likes to live where it will age the most slowly, and gravity pulls it there.  The greater the slowing of time, the stronger gravity's pull....  At the surface of a black hole, time is slowed to a halt.

Kip Thorne, The Science of Interstellar