"System debugging, like astronomy, has always been done chiefly at night."By Mythical Man-Month, The: Essays on Software Engineering, Anniversary Edition, 2nd Edition
"Systems program building is an entropy-decreasing process, hence inherently metastable. Program maintenance is an entropy-increasing process, and even its most skillful execution only delays the subsidence of the system into unfixable obsolescence."By Mythical Man-Month, The: Essays on Software Engineering, Anniversary Edition, 2nd Edition
"Technical solutions exist not for their own sake but in support of business goals."By Fundamentals of Data Engineering
"Test Early, Test Often, Test Automatically"By The Pragmatic Programmer: your journey to mastery, 20th Anniversary Edition, 2nd Edition
"Test State Coverage, Not Code Coverage"By The Pragmatic Programmer: your journey to mastery, 20th Anniversary Edition, 2nd Edition