In Urban Dictory, one of the definitions of "love" is:

LOVE

The most spectacular,indescribable, deep euphoric feeling for someone.

Love is an incredibly powerful word. When you're in love, you always want to be together, and when you're not, you're thinking about being together because you need that person and without them your life is incomplete.

This love is unconditional affection with no limits or conditions: completely loving someone. It's when you trust the other with your life and when you would do anything for each other. When you love someone you want nothing more than for them to be truly happy no matter what it takes because that's how much you care about them and because their needs come before your own. You hide nothing of yourself and can tell the other anything because you know they accept you just the way you are and vice versa.

It's when they're the last thing you think about before you go to sleep and when they're the first thing you think of when you wake up, the feeling that warms your heart and leaves you overcome by a feeling of serenity. Love involves wanting to show your affection and/or devotion to each other. It's the smile on your face you get when you're thinking about them and miss them.

Love can make you do anything and sacrifice for what will be better in the end. Love is intense,and passionate. Everything seems brighter, happier and more wonderful when you're in love. If you find it, don't let it go.

One word frees us of all the weight and pain of life:

That word is love.

-Sophocles

Urban词典关于爱情的定义是：

爱情

对于某人的最美妙的、最不可言状的、最透彻肺腑的愉悦的感觉。

爱情是一个具有无限魔力的词。当你们坠入爱河时，就始终想要呆在一起。而当你们不在一起时，就会想着呆在一起的情景，因为你需要那个人，如果没有对方你的生活就是不完整的。

这种爱是无条件的关怀，它没有极限，也不附加条件：全心全意地爱着某人。它是在你用生命去信任对方的那个时候，是在你愿意为对方付出一切的那个时候。当你爱着一个人时，你唯一想要的就是能让对方真正地快乐而不惜任何代价，因为你是多么地在乎着对方，因为对方的需要总是优先于你自己的需要。你丝毫也不掩饰自己，能告诉对方任何事情，因为你知道对方接受的就是你现在的这个样子，反之亦然。

爱就是当对方成为你睡觉前所想的最后一件事情的那个时候，是当对方成为你醒来时想起的第一件事情的那个时候，是温暖你的心房让你回归祥和的那种感觉。爱情包含了你向对方显示关怀和/或热爱的渴望。

爱情能让你为获得更好的结局而做出任何事情、付出任何牺牲。爱是热烈的，爱是激情澎湃的。当你沐浴爱河时，一切看起来都比平时要更明亮、更欢快、更美妙。一旦你找到它，就不要让它走掉。

有一个词使我们摆脱了生活中所有的负担和苦痛：

这个词就是爱情。

——索福克斯勒