Sab ki zindagi mein khushyian dene wale,
Mere dost ki zindagi mein koi gham na ho,
Usko mujhse bhie achche dost milein,
Jab uski zindagi mein hum na hon..
Friends should be like zero''s. When you add, they are the same. When u subtract, they are again the same but when u try to divide, they become INFINITY.