Came up in conversation, trying to recall, Dirty Harry? I plainly stated…
A man has to know his limits.
Clip I found, kind of bombed in the line.
A man has to know his limitations.
I’m guessing it was Clint Eastwood’s Dirty Harry, who it looked like in the clip.
Johnny Cash on limits.
And, what I could dig out of my online version of Marcus Aurelius?
“41. Transfer the application of all this to thyself. Does pain, does pleasure take hold of thee? The senses shall look to it. Wast thou impelled to a thing and wast thwarted? If thy impulse counts on an unconditional fulfilment, failure at once becomes an evil to thee as a rational creature. But accept the universal limitation, and thou hast so far received no hurt nor even been thwarted. Indeed no one else is in a way to thwart the inner purposes of the mind. For it no fire can touch, nor steel, nor tyrant, nor obloquy, nor any thing soever: a sphere once formed continues round and true.” Book VIII, 41.
Excerpt From: Aurelius, Marcus. “Delphi Complete Works of Marcus Aurelius.”
(Emphasis was mine.)