It would be best if you made such an invitation personal; mentioning your school specifically. But I can help you with an example
Dear students and teachers!
Do you want to know how to best protect our environment? Do you need the motivation to remember to recycle?
Meet Al Gore, one of the leading voices in the fight against man-made global warming.
Al Gore will give you the motivation you need!
The actual classification is very difficult.
<span>Strong is very open ended. You can be physically strong, but morally corrupt. </span>
<span>Capable suggests a skill that is above adequate. You can be a warrior that is capable but he couldn't add two single digit numbers together. </span>
<span>Mighty has the same problem. </span>
<span>I would pick </span><span>capable, strong, and mighty </span>
Answer:
I belive feeling associated with it.