One has a right to one's personal preferences, as in I'd never pick that color, but to each his own. Versions of this maxim appeared in the late 1500s but the modern wording was first recorded in 1713.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Company. All rights reserved.