"More than salutary," agreed Sam. "Indispensable.  The concepts can't be thought about without the language, and the discipline that results in this horn-of-plenty of benefits - from how to live without fighting to how to please your wife - all derive from the conceptual logic... understanding who you are, why you're here, how you tick - and behaving accordingly.  Happiness is a matter of functioning the way a human being is organized to function... but the words in English are a mere tautology, empty.  In Martian they are a complete set of working instructions.  Did I mention that I had a cancer when I came here?"