Galileo Galilei — Italian Scientist born on February 15, 1564, died on January 08, 1642

Galileo Galilei, was an Italian astronomer, physicist, engineer, philosopher, and mathematician who played a major role in the scientific revolution during the Renaissance. He is widely regarded as one of the greatest scientists of all time. His achievements include improvements to the telescope and consequent astronomical observations and support for heliocentrism. Galileo has been called the "father of modern observational astronomy", and the "father of modern physics", and "the father of modern science"... (wikipedia)

If I were again beginning my studies, I would follow the advice of Plato and start with mathematics.
We cannot teach people anything; we can only help them discover it within themselves.
The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
All truths are easy to understand once they are discovered; the point is to discover them.
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.