Start with a simple direct sentence:
"Leadership is very important."
Then include evidences:
"This is because leadership can build good character, is very useful in everyday life, and is essential to most people's future."
Then finish the paragraph:
"Without leadership, some of the greatest feats in all of history wouldn't exist. Heck, history itself may not have existed at all. Leadership is what makes great nations, and has created the world we live in today."
This put all together would look like this:
" Leadership is very important. This is because leadership can build good character, is very useful in everyday life, and is essential to most people's future. Without leadership, some of the greatest feats in all of history wouldn't exist. Heck, history itself may not have existed at all. Leadership is what makes great nations, and has created the world we live in today."
With this you could go on to create an entire essay.
