The walls around your life look permanent until you remember who built them. Most of your environment — the house you’re in, the people you know, what you think you can achieve — was shaped by human action, which means human action can reshape it.

That’s why belief matters so much here: “The limits of your environment appear imposing if you don’t believe that you can change them, but they lose all their grip on you once you go about challenging them.” The grip was never all in the wall; much of it was in the acceptance.

Confront a limitation with an open mind and the impossible starts reclassifying itself as achievable — dreams turning into attainable goals. You are as good as you make yourself; the limits are yours to test.