Commento su Proverbi 19:2

It is also not good that a soul be without knowledge It is not good for a person to be without Torah.

and he who hastens with his feet sins The sinner treads and tramples the sins with his heels and says, “This is of minor import; I will transgress it.” And our Sages explained: It is also...without knowledge, as referring to one who compels his wife to copulate with him against her will.

and he who hastens with his feet sins This refers to one who performs the sex act and repeats it. Another explanation: One who walks on grass on the Sabbath.