"As long as we remember what Bitcoin is, how it works & what the fundamental principles behind it are, we should be able to tackle any challenge that lies ahead."
The truth behind good #memes are what make them so relevant:
The code defines the rules, until there is new code which defines new rules.
Anyway, can you provide an exact reference? I find it hard to believe that anyone respectable would say exactly that.
If you're talking about Bitcoin-XT, What people said was probably more along the lines that before there is consensus on switching to the new protocol/software, nobody should run it.