וָאֶתְּנָ֤ה לִבִּי֙ לָדַ֣עַת חָכְמָ֔ה וְדַ֥עַת הוֹלֵל֖וֹת וְשִׂכְל֑וּת יָדַ֕עְתִּי שֶׁגַּם־זֶ֥ה ה֖וּא רַעְי֥וֹן רֽוּחַ׃
J’avais en effet appliqué mon attention à connaître la sagesse et à discerner la folie et la sottise, et je me suis aperçu que cela aussi était pâture de vent;
Chizkuni
ותרא האשה, “the woman saw,” with her mental eye; as in Kohelet 1,17 ולבי ראה הרבה חכמה, “and with my heart I saw a great deal of wisdom.”A different exegesis of these words: the verse must be rephrased as: “the woman took from the fruit and ate; as a result she realised that the tree (its fruit) was good to eat, and she also gave to her husband to share it and he ate.” [The problem was that one can taste that something is good, but one cannot know by looking at it that something tastes good. Ed.]
Rashi
according to the sanction of Heb. כְּרִשְׁיוֹן as the sanction of the king was upon them to build the Temple. כְּרִשְׁיוֹן is an expression of permission (רְשּׁוּת) derived from רשּׁה ; since from אבה to want, he says [i.e., derives] אֶבְיוֹן, a needy person; and from צבה, to desire, צִבְיוֹן, desire; and from חזה to see, חִזָיוֹן, a vision; and from רעה, רַעְיוֹן, thought; from חבה, חֶבְיוֹן, hiding; and from רשּׁה, he says רְשּׁוּת, permission; like from, ענה, עֱנוּת, affliction; and from שּׁבה, שְּׁבוּת,captivity; and from ראה, רְאוּת, a sight; and from זנה, זְנוּת, harlotry. The result is that רְשּׁוּת and רִשְׁיוֹן are derived from the same root according to the gauge of grammar, and they are the same expression. Menahem, (p. 34) however, associated it with (Ps. 21:3): “and the speech of his lips (וַַַַַאֲרֶשֶּׁת),” but he was not exact with its root. Nevertheless, these two manners [of defining words] are close to each other in their meanings.
Rashi
those who scorn me Heb. מהוללי, those who scorn me, an expression of mockery.