“Everyone carries a part of society on his shoulders; no one is relieved of his share of responsibility by others. And no one can find a safe way out for himself if society is sweeping towards destruction. Therefore everyone, in his own interests, must thrust himself vigorously into the intellectual battle. No one can stand aside with unconcern; the interests of everyone hang on the result. Whether he chooses or not, every man is drawn into the real historical struggle, the decisive battle into which our epoch has plunged us.”
That passage, while written in the 1940s, carries a certain resonance now, I think.