Most people would say the answer to this question is 10.

According to Maslow's hierarchy of needs, we need to meet our own (family) needs before we can begin thinking about meeting the needs of humanity:

Reference: http://en.wikipedia.org/wiki/Maslow's_hierarchy_of_needs
"Maslow's hierarchy of needs is often portrayed in the shape of a pyramid, with the largest and most fundamental levels of needs at the bottom, and the need for self-actualization at the top.

The most fundamental and basic four layers of the pyramid contain what Maslow called "deficiency needs" or "d-needs": esteem, friendship and love, security, and physical needs. With the exception of the most fundamental (physiological) needs, if these "deficiency needs" are not met, the body gives no physical indication but the individual feels anxious and tense. Maslow's theory suggests that the most basic level of needs must be met before the individual will strongly desire (or focus motivation upon) the secondary or higher level needs. Maslow also coined the term Metamotivation to describe the motivation of people who go beyond the scope of the basic needs and strive for constant betterment.  Metamotivated people are driven by B-needs (Being Needs), instead of deficiency needs (D-Needs)." Read more

Answer 1: Removing Candle Wax from a Tablecloth -- Heloise Hints - Good Housekeeping
For a tablecloth or other material, put it in the freezer for several days, to freeze and dry out the wax. Flick off big chunks and then put paper towels over and under the stain and press with the iron. Rub straight liquid laundry detergent into the area, let set for a few minutes, then wash in the hottest water safe for the fabric.Speaking of candles, storing them in the freezer is not recommended because it will dry them out. However, keeping them in the refrigerator is okay, but be sure to put them in a plastic bag or wrap in plastic so the wicks don't absorb moisture.


Answer 2: How to Get Wax Off a Tablecloth - eHow.com 

1. Scoop up excess wax with a spatula or a spoon.
   
2. Lay the tablecloth on an ironing board, and place a plain paper sack over the wax stain. Apply a warm (not hot) iron to the paper. Replace the wax-saturated paper bag as needed. Continue until wax is no longer transferring to the paper.
   
3. Treat colored candle stains with a prewash stain remover, or apply detergent directly on the spot prior to washing. (Remember to pretest spot removers and stain removers in an inconspicuous area prior to treating stains.)
   
4. Launder the tablecloth with detergent in the hottest water that's safe for the fabric. Wax-based stains must be melted to be removed from the fabric fibers.
   
5. Make sure the stain is completely removed before placing your tablecloth in the dryer. If you're unsure, wash, wash again