We love to hate them but still can’t imagine life without them. They annoy us, basically know all our strengths and weaknesses and are usually our first best friends.

If you haven't already guessed, these descriptions belong to the wonderful individuals known as siblings. In honor of National Sibling Day on April 10, we’ve gathered 15 quotes about the special bond between sisters and brothers. 

1. "We know one another's faults, virtues, catastrophes, mortifications, triumphs, rivalries, desires, and how long we can each hang by our hands to a bar. We have been banded together under pack codes and tribal laws." - Rose Macaulay

2. "To the outside world, we all grow old. But not to brothers and sisters. We know each other as we always were. We know each other's hearts. We share private family jokes. We remember family feuds and secrets, family griefs and joys. We live outside the touch of time." - Clara Ortega

3. "Sibling relationships - and 80 percent of Americans have at least one - outlast marriages, survive the death of parents, resurface after quarrels that would sink any friendship. They flourish in a thousand incarnations of closeness and distance, warmth, loyalty and distrust." - Erica E. Goode

4. "I don't believe an accident of birth makes people sisters or brothers. It makes them siblings, gives them mutuality of parentage. Sisterhood and brotherhood is a condition people have to work at." - Maya Angelou

5. "How do people make it through life without a sister?" - Sara Corpening

6. "My siblings are my best friends." - America Ferrera

7. "A brother is a friend given by Nature." - Jean Baptiste Legouve

8. "Our siblings. They resemble us just enough to make all their differences confusing, and no matter what we choose to make of this, we are cast in relation to them our whole lives long." - Susan Scarf Merrell

9. "Your parents leave you too soon and your kids and spouse come along late, but your siblings know you when you are in your most inchoate form. - Jeffrey Kluger

10. "You don't choose your family. They are God's gift to you, as you are to them." - Desmond Tutu

11. "Our siblings push buttons that cast us in roles we felt sure we had let go of long ago - the baby, the peacekeeper, the caretaker, the avoider.... It doesn't seem to matter how much time has elapsed or how far we've traveled." - Jane Mersky Leder

12. "Sometimes being a brother is even better than being a superhero." - Marc Brown

13. "There's no other love like the love for a brother. There's no other love like the love from a brother." - Terri Guillemets

14. "Our brothers and sisters are there with us from the dawn of our personal stories to the inevitable dusk." - Susan Scarf Merrell

15. "Brothers and sisters are as close as hands and feet." - Vietnamese Proverb

RTR26K93 Beyonce and Solange are one of Hollywood's best-known sibling pairs and are celebrated for their endless displays of support and love for each other. Photo: Reuters