“Never forget that only dead fish swim with the stream.”

“You don't accomplish much by swimming with the mainstream. Hell, a dead fish can do that.”

“Remember, a dead fish can float downstream, but it takes a live one to swim upstream.”

“It takes a strong fish to swim against the current. Even a dead one can float with it.”

“Oh, things are frequently what they seem,
And this is wisdom's crown:
Only the game fish swims upstream,
But the sensible fish swims down.”

“Listen, days decay, like food, like fish, like dead bodies. This night will decay, too and you will forget. Listen, we will forget.”

“There are these two young fish swimming along and they happen to meet an older fish swimming the other way, who nods at them and says "Morning, boys. How's the water?" And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes "What the hell is water?”

“The man who is swimming against the stream knows the strength of it.”

“Time is but the stream I go a-fishing in”

“A Nootka wizard will make an image of a swimming fish and put it into the water in the direction from which the fish generally appear.”