Excess and Moderation, philosophically, are usually part of the terminology of civic but also general ('practical', in Aristotelian terms) thought. A very prominent line, originating probably since Thales or shortly before his time (7th century BC), is that all things should be in moderation. The phrase was used with minor change by a number of other philosophers, including Aristotle who seems more tied to it in popular thought.
Excess isn't that prominent an idea in philosophy, although it is in art. I can recall two thinkers who were involved with this term. Nietzsche would be the only prominent of those, and he argued from time to time that a philosopher should be excessive, a sentiment echoed in his alteration of the quote by Aristotle according to which "man is a social animal; any man who can live alone is either a beast or a god", and he added "or a philosopher". Of course it doesn't help that he died in a quite horrible way, after losing sanity while watching a poor abused horse which could no longer carry the things they kept loading onto its back.
(The other philosopher would be Battaile, who is a minor french philosopher of the early post ww2 era. Much like Nietzsche, he too was tied primarily to art. His art is strange (i think one could label him as a catholic pornographer, and his symbols tend to be focused on genitals).
Kierkegaard could be argued to be about excess as well, although in his case there is a very notable religious (christian) parameter too).
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You can discuss what you think of excess and moderation, and if a better balance is closer to one or the other. My view is that moderation is a basis for overall safety in the journeys of thought, although the more pronounced effects are inevitably (by definition as well as reality) those which bring us to border some less charted realm of thinking. The distinctions can be applied in the terminology of the Apollonian and Dionysian, in Nietzsche's first main treatise.
Excess isn't that prominent an idea in philosophy, although it is in art. I can recall two thinkers who were involved with this term. Nietzsche would be the only prominent of those, and he argued from time to time that a philosopher should be excessive, a sentiment echoed in his alteration of the quote by Aristotle according to which "man is a social animal; any man who can live alone is either a beast or a god", and he added "or a philosopher". Of course it doesn't help that he died in a quite horrible way, after losing sanity while watching a poor abused horse which could no longer carry the things they kept loading onto its back.
(The other philosopher would be Battaile, who is a minor french philosopher of the early post ww2 era. Much like Nietzsche, he too was tied primarily to art. His art is strange (i think one could label him as a catholic pornographer, and his symbols tend to be focused on genitals).
Kierkegaard could be argued to be about excess as well, although in his case there is a very notable religious (christian) parameter too).
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You can discuss what you think of excess and moderation, and if a better balance is closer to one or the other. My view is that moderation is a basis for overall safety in the journeys of thought, although the more pronounced effects are inevitably (by definition as well as reality) those which bring us to border some less charted realm of thinking. The distinctions can be applied in the terminology of the Apollonian and Dionysian, in Nietzsche's first main treatise.