Do we need to learn or do we need to adapt?

You are no doubt familiar with Peter Senge's quote of "the only sustainable competitive advantage is an organizations ability to learn faster than it's competition".

But maybe we should take the lead from Charles Darwin:

According to Darwin's Origin of Species, it is not the most intellectual of the species that survives; it is not the strongest that survives; but the species that survives is the one that is able best to adapt and adjust to the changing environment in which it finds itself.

Credit: Megginson, ‘Lessons from Europe for American Business', Southwestern Social Science Quarterly (1963) 44(1): 3-13, at p4.

So is sustainability/survival not so much about learning but about the ability to adapt (more quickly than competitors?) to a changing environment?

I prefer like the word adapt rather then learn as adapt signifies change where it is possible to learn/know something but not change :-)