The line "You are not expected to understand this" from Lions' Commentary on UNIX 6th Edition, https://en.m.wikipedia.org/wiki/Lions%27_Commentary_on_UNIX_...
Space shuttle style from kubernetes https://github.com/kubernetes/kubernetes/blob/ec2e767e593953...
Here is a whole list on stack overflow https://stackoverflow.com/questions/184618/what-is-the-best-...