I think it is this one:
“It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change.”
Some people think Darwin said it but it was actually a guy called Leon Megginson. I think it highlights the importance of change, at all levels. As a society I think we need to be open to change to cope with what happens in the future, but also as individuals. When I was younger I didn’t realise how important it is to be open to new ideas, and if you fail at something it doesn’t matter as long as you learn from it.