Use "protean" in a sentence

1. This topic is more suited in Human Resources where we discuss the control of career path becoming more and more the responsibility of the individual (protean) rather than the company

2. Clearly he'd no idea that the mirror, whatever else it was capable of, harbored protean qualities

3. There was nothing literal about the dream’s ideals of love, of course, but they did bring me to this region, and their message holds merit: The effects of love are always protean

4. I, too, am protean, as you so plainly can see