All my younger colleagues have heard my catchphrase:

Copy-paste is free; abstractions are expensive.

One of the many great takeaways from Sandi Metz's talk at Railsconf 2014: "Duplication is far cheaper than the wrong abstraction."

Worth watching in its entirety, but the quote is from ~13:59 in that video.

	▲	drivers99 9 days ago \| parent [-]
		The related blog post (I just found thanks to watching that and then searching for her site) is great too: https://sandimetz.com/blog/2016/1/20/the-wrong-abstraction It explains so much of what has been bothering me about what I work on at work, and now I understand why and some of what to do about it.