Abstract
Philosophers conceptualize a lot, generate, analyze, and engineer concepts. They often either equate ‘words’ and ‘concepts’ or consider words only as means of expression of their ‘concepts’. I suggest that philosophers should learn to distinguish between ‘words’ and ‘concepts’. Philosophers’ terms are often incompatible or partially incompatible with philosophers’ ‘concepts’. Examples are ‘isms’ in philosophy and the conception of reason. If ‘talking about the same matter’ is a prerequisite for fruitful philosophical debates, words and their analysis should have at least some limiting and guiding power over concepts.