Read "Of Those Sentiments Concerning Nature with Which Philosophers Were Delighted" by Plutarch online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
The Stoics say that there are five senses properly so called, seeing, hearing, smelling, tasting, and touching. Aristotle indeed doth not add a sixth sense; but he assigns a common sense, which is the judge of all compounded species; into this each sense casts its proper representation, in which is discovered a transition of one thing into another, like as we see in figure and motion where there is a change of one into another. Democritus, that there are several species of senses, which appertain to beings destitute of reason, to the Gods, and to wise men.