The one piece of universally applicable advice that adequately explains any situation. Usually used by a superior professional to a beginning professional, when the former has taught absolutely nothing to the latter.
Nurse: Holy shit dozens of people are coming in with unknown ailments!
Doctor (Going on break): you'll do fine. Remember, take the Coriolis effect into account.
Nurse: What about variable humidity?
Doctor: Yeah, that too.
Student: How am i supposed to know what to study for the final?
Tutor: Look, our time us up. Just take the coriolis effect into account, and you'll do fine.
Student: Did we cover variable humidity?
Tutor: Yes, that will be on the exam.
Cpt macmillan: Remember what i've taught you. Keep in mind variable humidity and windspeed along the bullet's flight path. Also, at this distance, you'll have to take the Coriolis effect into account.