俱舍論頌疏論本 3.58

3.58

釋曰：唯善後八根者，謂信等八名後八根，唯是善性。憂通善不善者，憂非無記，強思起故，通善惡性。意餘受三種者，意根、餘四受（除憂），此五通三性。前八唯無記者，眼等前八唯無記性，眼等五根及男、女命，名八根也。

Explanation: 'Only the last eight faculties are virtuous' means that the eight beginning with faith are called the last eight faculties, and they are purely virtuous in nature. 'Grief is both virtuous and unvirtuous' means that grief is not indeterminate; because it arises from strong deliberation, it admits of both virtuous and unvirtuous natures. 'The mind and the remaining sensations are of three kinds' means that the mind faculty and the remaining four sensations (excluding grief)—these five—admit of all three natures. 'The first eight are only indeterminate' means that the first eight, beginning with the eye, are exclusively indeterminate in nature; the five faculties beginning with the eye, together with the male, female, and life faculties, are called the eight faculties.