Thou shalt not use the 140 characters limit as an excuse for bad grammar and/or incorrect spelling.

Thou shalt not tweet to be retweeted.

Thou shalt not follow someone, merely because they are following you.

Thou shalt not unfollow someone, merely because they stopped following you.

Thou shalt not think that thou be a leader, merely because thee be having more than 0 followers.

Morals are nothing but a civilized society’s attempt to tame some beast called man.

Religious commandments make humans seem way less animal than they are.

The forbiddenness of a fruit makes even the taste of a lemon sweet.