誠者,天之道也;誠之者,人之道也。
( Chéng zhě, tiān zhī dào yě; chéngzhī zhě, rén zhī dào yě. )
---- 子思 《禮記·中庸》22:7
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Der bestirnte Himmel über mir, und das moralische Gesetz in mir. ---- Immanuel Kant (KpV: AA 05: 161.33–36)
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ἃ γὰρ δεῖ μαθόντας ποιεῖν, ταῦτα ποιοῦντες μανθάνομεν (What we have to learn to do we learn by doing.)
---- Ἀριστοτέλης (Nic. Eth. 1103a33)
Gustav Holst: These pieces were suggested by the astrological significance of the planets. There is no programme music in them, neither have they any connection with the deities of classical mythology bearing the same names. If any guide to the music is required, the subtitle to each piece will be found sufficient, especially if it be used in a broad sense. For instance, Jupiter brings jollity in the ordinary sense, and also the more ceremonial type of rejoicing associated with religions or national festivities. Saturn brings not only physical decay, but also a vision of fulfillment. Mercury is the symbol of the mind.