imponderable
adj
of which the effect or importance cannot be measured or estimated (作用或重要性)无法衡量的, 无法估计的. imponderable, n (usu pl 通常作复数) thing, eg a quality or an emotion, that is imponderable 无法估量的事物(如性质或感情)
the great imponderables of love and power 爱情与权力, 极难衡量的事物.
Speak to your father and tell him that you are already doing well in the subject of your choice. If you like, remind him that many women have chosen to work in fields that were not used to accepting women. You can point out that Florence Nightingale opene