“The clean tongue, the clear head and bright eye are birthrights of each day.” — William Osler
(Of course, I initially took “clean tongue” a little too literally, but the missus brought me up to speed. Be well and do good, friends.) — YUR
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Unclerave's Wordy Weblog 
I looked up quotes by Dr. William Osler, he really had some insightful ones. They are worth a few minutes to read.
Yeah, we’ve had at least one of his quotes before, Elmo. Insightful and very interesting guy! — YUR
Clean tongue to me reads be ready to taste life, and literally taste to food of the earth.