naca manojñānaṃ sarvārthagocaratayā na prasiddham iti yuktaṃ vaktum yato bhavatāpi rūpaśabdādiviṣayaṃ smārttaṃ jñānam upavarṇitam
And it is not reasonable to say that "mental cognition is not known to encompass all objects," since you yourself have described memorial cognition as having color, sound, etc. as its objects.