[填空题]
The New Science of Siblings
For a long time, researchers have tried to nail down just what shapes us-or what, at least, shapes us most. And over the years, they’ve had a lot of eureka moments (突发灵感的时刻). First it was our parents, particularly our mothers. Then it was our genes. Next it was our peers, who show up last but hold great sway. And all those ideas were good ones-but only as far as they went. Somewhere, there was a sort of temperamental(捉摸不定) dark matter exerting an invisible gravitational pull of its own. More and more, scientists are concluding that this unexplained force is our siblings.
From the time they are born, our brothers and sisters are our scolds, protectors, tormentors, playmates, counselors, sources of envy, objects of pride. Our spouses arrive comparatively late in our lives; our parents eventually leave us. Our siblings may be the only people we’ll ever know who truly qualify as partners for life. Siblings