Love is the willful intent to serve the well being of another.  Here are some famous quotes on love:

"Love is friendship set on fire." - unknown 

"Love is the master key that opens the gates of happiness." - Oliver Wendell Holmes

"Maybe love is like luck. You have to go all the way to find it." - Robert Mitchum 

"Love is the irresistible desire to be irresistibly desired." - Mark Twain

"Love is more than three words mumbled before bedtime. Love is sustained by action, a pattern of devotion in the things we do for each other every day." - Nicholas Sparks  

So how do you show someone that you love them?  There are many, many ways:

Wash the dishes by hand with your lover even if you have a dishwasher.  -  Write your lover a poem or romantic short story. -  Create a romantic thank you note for all they happiness they bring you. - Put a picture of your lover on your dashboard. - Hug, touch, or caress your lover whenever possible. -  Stare deeply into your lover's eyes and whisper the words "I love you." - Start a romantic blog and dedicate it to your lover. - Give your lover an ameture manicure or pedicure.

Other ways you can show your love:

• Step out of your comfort zone and particpate in something that your lover enjoys doing.  It could be as simple as watching a movie you wouldn't normally watch or going to a sports venue. 
• Take time out to listen.  Sometimes this is the simplest of acts, yet the most meaningful.
• Know things about them.  What is their favorite color?  Do they like coffee or tea?  Are they a mustard or mayonaise person.  Knowing the details about your partner is vital to any relationship.
• Turn off the TV and the Phones.  Light some candles and give your lover a massage.  Or sit and talk.  Or laydown and hold and caress them.
• Don't be afraid to be creative.  Paint or draw a picture of your lover even if you are horrible at it.