чем ..., тем ...(with comparative adjective or adverb; used to show the connection or relationship between two actions, states, processes etc. • The harder you work, the more you earn)
чем ... тем ...(in general, the larger the system the better the approximation • the heavier an element is, the shorter its life • the more the better • the faster the gas motion and the faster the weakening of the wave, the faster the increase of intensity • the more he reads, the less he understands;)