To be conscious, conscium sibi esse alicujus rei, or with accusative and infinitive: not to be conscious of any guilt, not to be conscious of anything, nullius sibi culpae conscium esse, nihil conscire sibi (Hor., Ep., 1, 1, 61): I am perfectly conscious of it, bene memini. I am conscious how, that, etc., scio (if it is a matter of knowledge): sentio (if it is a felt conviction; e.g., si quid est in me ingenii, quod sentio quam sit exiguum, Cic.). I am not conscious that I was ever, etc., conscius mihi sum, numquam me fuisse, etc. (Cic.).