Kaizen

from the wikipedia

In Japanese this is pronounced "kaizen".

改 ("kai") means "change" or "the action to correct".
善 ("zen") means "good".
In Chinese this is pronounced "gai shan":

改善 ("gǎi shàn") means "change for the better" or "improve".
改 ("gǎi") means "change" or "the action to correct".
善 ("shàn") means "good" or "benefit". "Benefit" is more related to the Taoist or Buddhist philosophy, which gives the definition as the action that 'benefits' the society but not one particular individual (i.e., multilateral improvement). In other words, one cannot benefit at another's expense. The quality of benefit that is involved here should be sustained forever, in other words the "shan" is an act that truly benefits others.