My sister taught me everything I really need to know, and she was only in sixth grade at the time.
More than Santa Claus, your sister knows when you've been bad and good.
If you don't understand how a woman could both love her sister dearly and want to wring her neck at the same time, then you were probably an only child.
Your sister is the only creature on earth who shares your heritage, history, environment, DNA, bone structure, and contempt for stupid Aunt Gertie.
If sisters were free to express how they really feel, parents would hear this: "Give me all the attention and all the toys and send Rebecca to live with Grandma."
every one of us possesses a gene predisposing us toward rivalry, competition, and fits of envy with any past, present, or future siblings.
Changing schools and friends is hard on children and can often make them desperate and lonely enough to form closer ties with a sibling.
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