What is "v'Chol Asher Sha'alu Einai"?
Rav Sadya Gaon: Everything that my gaze was drawn to and desired it.
Seforno: Everything that the eyes of my intellect wanted to grow wise in, even if it is not a Divine investigation [I did not withhold it] - "va'Ydaber Al ha'Etzim? va'Ydaber Al ha'Behemah" (Melachim I, 5:13).
Metzudas David: It is my heart's desires; it desires only what the eyes see.
What is the meaning of "Lo Atzalti"?
Rashi: I did not distance. Similarly, "va'Yatzel Min ha'Ru'ach? va'Yiten Al? ha'Zekenim" (Bamidbar 11:25) - like a lamp used to light many lamps, and it does not lose any of its light (Sifri Bamidbar 93).
Ibn Ezra: It is like Etzel (Bereishis 41:3; at) - I took from what is by it.
Rashbam: I did not raise myself above them 1 [and refrain from them]. I did every matter of importance that I saw.
Ri Kara: I did not refrain from them.
Magihah (in Toras Chayim): Atzalti it is an expression of grandeur, like "v'El Atzilei Bnei Yisrael" (Shemos 24:11)
What is "mi'Kol Simchah"?
Seforno: It is spiritual Simchah via attaining knowledge that I desired.
Metzudas David: Every matter that makes one rejoice.
What is the significance of "Ki Libi Some'ach mi'Kol Amali"?
Seforno: My intellect had added Simchah due to my efforts to grow wise - the opposite of one who exerts with his physical powers; they weary, and he is pained.
Metzudas David: Even though there is some sadness due to the toil, I did not refrain, due to the Simchah that my heart would receive from them, which was much greater.
What was "Chelki mi'Kol Amali"?
Rashi citing Gitin 68b #1: After he was cast off (refer to 1:12:1:2), he was left with only his staff.
Rashi citing Gitin 68b #2: After he was cast off (refer to 1:12:1:2), he was left with only his earthenware cup, to drink from it 1 .
Ibn Ezra, Ri Kara: I rejoiced; this was my only reward for my toil 2 .
Rid: It was only the little benefit that my body received.
Seforno: What I understood, it was only my portion; no one else had a share in it - unlike what I toiled for things that perish. Also others have them 3 !
Metzudas David: I had only the Simchah, and I cast off the sadness from the toil needed to attain it (I was not concerned for it).