“I only wish that wisdom were the kind of thing that flowed … from the vessel that was full to the one that was empty.”
Plato, Symposium, 175d
Plato
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Socrates 168
classical Greek Athenian philosopher -470–-399 BCRelated quotes
“They were empty gestures, the kind it was beginning to seem that these people were full of.”
Source: Henry Rios series of novels, Goldenboy (1988), p.115

“There is no such thing as an empty word, only one that is worn out yet remains full.”
“Life is flowing away like water running out from a leaky vessel.”
Vairagyaśatakam 38 https://archive.org/stream/Vairagya.Satakam.of.Bhartrihari#page/n28/mode/1up
Śatakatraya

De Pace Fidei (The Peace of Faith) (1453)

“639. Emptie vessels sound most.”
Jacula Prudentum (1651)

Robert Browning. (1903)
Context: One of the deepest and strangest of all human moods is the mood which will suddenly strike us perhaps in a garden at night, or deep in sloping meadows, the feeling that every flower and leaf has just uttered something stupendously direct and important, and that we have by a prodigy of imbecility not heard or understood it. There is a certain poetic value, and that a genuine one, in this sense of having missed the full meaning of things. There is beauty, not only in wisdom, but in this dazed and dramatic ignorance.