Twins

You can't be in more than one place at the same time, (at least not while you inhabit the third dimension).
If you buy two identical items because you think that it's the wise thing to do you will end up not using one of the items.
You can't have two opposite ideas and sustain them to be able to achieve a single successful outcome.
If you have to be in more than one place at the same time you don't have to be in either.
If nothing is coming your way something is passing you by.
You can't have a right and a wrong answer to a question. You can have different answers but not at the same time.
Do not be ambivalent it is a state of mind that does not really exist.
There is no such thing as call waiting, the other call did not terminate on your phone; you only thought that it did, ignore it.
Be careful about waiting. You can't wait and complete your intending action at the same time. You should probably leave and complete another action. Your time will come.
There is always only one perfect choice, the needle in the haystack.
There are no identical twins, just things that have a superficial similarity. If you dig deeper you will see the differences.