Galileo Galilei was an Italian polymath,astronomer, physicist, engineer, philosopher, and mathematician he played a huge role in the scientific revolution in the 17th century.
Discovered: Callisto,Europa,Ganymede,Rings of saturn and io.
You cannot teach a man anything; you can only help him find it within himself.
All truths are easy to understand once they are discovered; the point is to discover them.
I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.