Researchers have uncovered the reason for this difference in how difficulty is interpreted , and it is simply this : more often than not , bright girls believe that their abilities are innate and unchangeable , while bright boys believe that they can develop ability through effort and practice .
Which would be fine , if your abilities were innate and unchangeable .
如果你的能力是固有的,并且不可改变,怎样才会好?
These archaic bills and laws , wasteful of time , money and lives , obscure an enduring and unchangeable truth : safe and effective family planning is the transformative social justice accomplishment of the 20th century .
What is normal or typical , however , is not always desirable or unchangeable .
但是,正常或典型的现象并非总是可取或不可改变的。
And because bright girls are particularly likely to see their abilities as innate and unchangeable , they grow up to be women who are far too hard on themselves - women who will prematurely conclude that they don 't have what it takes to succeed in a particular arena , and give up way too soon .