I really felt the need to post this again (thanks to my friend Susan for reminding me of this). It is from the former Cairogal, now Abu Dhabi-UAE:

"Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime". ~Mark Twain

I truly believe that does not necessarily mean traveling out of your own country or state. I think it means traveling out of your own comfort zone which is probably not very far from where you live.