Baruch Spinoza
Baruch Spinoza a Philosopher was born ed in Amsterdam in 1632. Baruch Spinoza believed that everything that happens occurs through the operation of necessity and that freedom is the possibility to say "yes" and fully understand why things should necessarily happen that way.
Baruch Spinoza also believed that knowing what we do and our emotions we become the cause of our effects.
Selected Bibliography : Encyclopedia Britannica.
Next researcher on emotions:Candace Pert