The tenets of knowledge can be summed up as follows: That one should strive always to advance truth to the full extent of one's capacity. To lie, or otherwise spread untruth is sin; equally sinful is to prevent the spread of truthful information. The practitioner is obligated, should they be aware, to counter any misinformation they find. Perhaps most damning is a refusal to actively encourage the spread of truth. Thus are the tenets of knowledge, and their sins.
idk for sure but in my imo the fact that actively seeking knowledge isn't an explicit tenet is intentional. moriel generally values the publicity of knowledge more than the knowledge itself, and their adherents are likely to be knowledge seekers anyway. so that way if they have to compromise on something, the tenets suggest what to do, without otherwise really changing any behaviour whatsoever