For many years people 'wonder' (zly czas) what is the definition of “personality”, but the truth is that to this day we don't have just one correct answer. There are at least a few different movement of psychological theories about (tutaj potrzeba wiecej, np. the concept/the idea of) personality. One of 'them' (wg mnie, lepiej 'the thoeries') is called Humanism and it has sources in (przedimek) work of Abraham Harold Maslow and Carl Rogers. (Co do Carl Rogers to nie jestem 100% czy mozna jego tutaj zaliczyc)
There are a lot of similarities between 'those' (ale jak na razie to nie wymieniles na czym one polegaly - mamy tylko nazwiska) two theories. (Ja bym to napisala inaczej..There appear to be similarities between the theories of these two - a jak ich nazwac, czy 'theorists' czy 'psychologists' to sam musisz zadecydowac).
They also agreed that self-actualization is (przedimek) driving force for humans, and that 'peoples' (nie rozumiem 's' na koncu wyrazu) always try to fulfill their capabilities.
(Lepiej dac However, ) there are also a number of differences between (przedimek) Maslow and (przedimek) Rogers theory. First of all Rogers claimed that to achieve self-actualization 'human' (cos nie tak, albo 'a' human' albo 'a human being') 'need' (human-3os.l.poj) to be in a relationship in which there is congruency, respect and empathy. In contrast to 'him' (lepiej 'this') Maslow maintained that self-actualizing people keep their self-esteem thanks to the fact that 'the' (zle i niepotr) 'theirs' (zle slowo, tutaj THEIR) lower needs have been already satisfied.
Overall, after comparing and contrasting those two theories of personality (ale co? cos tu nie jest jasno) appears to show that despite (dodaj 'the fact that') both Rogers and Maslow represent (przedimek) humanistic approach in psychology, their theories 'are' (niepotr) have both similarities and differences.