Logo for speaker/expert

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This customer received 106 logo designs from 49 designers. They chose this logo design from M Habib as the winning design.
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Design a logo that inspires innovation but doesn't copy the tired light-bulb or brain logos. Should be distinctive and integrate some aspect of the speaker so that there is at least some connection.
The speaker is: https://drdavidricketts.com/
Please ignore any current logos on the page (they were put in as place holders).
It is OK to use some combination of speakers initials (DSR or DR), but they must be in an innovative and clever way. We have turned down all logos that look like a monogram.
The logo will appear on web and print material.
Logo Text
The logo is for the speakers marketing materials. It will be commonly placed next to the speakers name: Dr. David S. Ricketts. The logo should be able to stand on its own, however, but it might be useful to pace it next to the name to see that it is complimentary.