The big old Bartlett’s unabridged is the best. You can’t compare any of the paperback editions. The quotations are listed chronologically by author and there is a great index based on key words. It has everything and is accurate.
My 1st lesson each year comes from my Bartlett’s. The 1st week of school is always a little chaotic because students appear to be enrolled and others never show up. Students also are reassigned because of schedule errors and changes so we usually have a lesson plan that can be picked up into the week.
I have 50 quotations about education, history etc that range from Greek philosophers up to Deng Xiao Peng on slips in a bag. The students each pick one. The assignment-figure out what the quotation means, decide if it is still valid today and present it to the class. To make sure they don’t just go to the internet they have to discuss it with 3 adults (the English teachers just love that-lol). The purpose is to introduce them to history and understand that people have always dealt with the same ideas.