1a work, personal motivation
https://www.youtube.com/watch?v=rM9Btf-Ioos
https://www.youtube.com/watch?v=wL3CFtW8WE0
1b personality, family
https://www.youtube.com/watch?v=wzS_k2_fdpk
https://www.youtube.com/watch?v=36m1o-tM05g
1c language
https://www.youtube.com/watch?v=-WLHr1_EVtQ
http://www.youtube.com/watch?v=d0yGdNEWdn0
https://www.youtube.com/watch?v=Ah6WEo2y7do
https://www.youtube.com/watch?v=hdUbIlwHRkY
https://www.youtube.com/watch?v=2_q9b9YqGRY
2a stories
https://www.youtube.com/watch?v=_GTz_Jm9ZTY
https://www.youtube.com/watch?v=_VgmsUxVNUE
https://www.youtube.com/watch?v=tWwDeqorbH0
2b multitasking
https://www.youtube.com/watch?v=-WLHr1_EVtQ
http://www.youtube.com/watch?v=d0yGdNEWdn0
https://www.youtube.com/watch?v=Ah6WEo2y7do
https://www.youtube.com/watch?v=hdUbIlwHRkY
https://www.youtube.com/watch?v=2_q9b9YqGRY
2a stories
https://www.youtube.com/watch?v=_GTz_Jm9ZTY
https://www.youtube.com/watch?v=_VgmsUxVNUE
https://www.youtube.com/watch?v=tWwDeqorbH0
2b multitasking
