Don’t ever let somebody tell you you can’t do something, You dream, you gotta protect it. People can’t do something themselves, they wanna tell you you can’t do it. If you want something, go get it. Period. – Will Smith’s
Here’s one that’s stayed with me since I was a teenager:
A ship in a harbour might be safe, but that’s not what it was built for.
If you break both legs falling out of that tree, don’t come running to me.