ðɪs tɹænsˈɪʃən ɪz mˈoːɹ ɐpˈæɹənt ˈæftɚ sˈɑːɹɾɚz mˈɪlətˌɛɹi sˈɜːvɪs fɹʌm nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi nˈaɪn wˌɛɹ wiː əbzˈɜːv ɐ ɹˈæðɚ mˈoːɹ sˌɪmpəθˈɛɾɪk vjˈuː ʌv bˌiːɪŋ ɪnðə wˈɜːld, ɐ tˈɑːpɪk ðæt ɪz dˈɛlt wɪð ɪn mˈʌtʃ ɡɹˈeɪɾɚ diːtˈeɪl ɪn hɪz nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi θɹˈiː wˈɜːk bˌiːɪŋ ænd nˈʌθɪŋnəs.
This transition is more apparent after Sartre’s military service from 1939 where we observe a rather more sympathetic view of being in the world, a topic that is dealt with in much greater detail in his 1943 work Being and Nothingness.