Are we doomed to be ruined by the most intense emotion of the moment? Love, rage, and fear and just a few within the range of human emotions. Plato thought that love made people act like insane slaves. The Greeks believed that emotions need to be trained and directed by reason to free the mind. But 17th-century philosopher Baruch Spinoza thought that having the right emotion at the right time can assist in helping to drive our goals. The bottom line, emotions are how we experience reality.