The time to prepare isn't after you have been given the opportunity. It's long before that opportunity arises. Once the opportunity arrives, it's too late to prepare.
When opportunity comes it is too late to prepare.
We're not all equal as far as intelligence is concerned. We're not equal as far as size. We're not all equal as far as appearance. We do not all have the same opportunities. We're not born in the same environments, but we're all absolutely equal in having the opportunity to make the most of what we have and not comparing or worrying about what others have.
It's too late for preparation when opportunity strikes.
When we aren't alert, we miss opportunities to improve ourselves. We should always watch for circumstances or situations that can help or harm us and be eager to learn from these encounters.