In the pursuit of knowledge, anyone should be able to recognize their emotions and know when to trust them. Being able to trust your emotions depends on the situation you are in and what you have to deal with. Throughout life, one has to use their knowledge to make right decisions and to decide what would be best for them. According to Plato, “knowledge is a justified true belief”. Knowledge requires belief to maintain knowing a certain proposition; and some levels of justification and truth is needed for knowledge. Science and History are two of the main subjects that people rely on in life and base their everyday choices off them. Basing your knowledge on your emotions is not a reliable way to understand the real world and by using that is not the best way to learn new information. In the case of "hard" sciences, like math and science, one would not want to rely just on emotions, but rather on empirical evidence.
Everyone has their own approach to how they react to every situation that occurs in an individual’s life. In order to gain knowledge, one must learn about different topics and be open minded in life about all the different perspectives of other people. Science is one thing that people need to keep an open mind about and understand different perspectives in order to understand how things in life work. Back in history, people thought the earth revolved around the sun--because of their feelings about religion. But that turned out to be false, though people didn't want to believe it. So that's an example of why it's not a good idea to rely on emotions with science. It was Galileo who figured out that the earth revolves around the sun, but the Church taught that the sun revolved around the earth, and so they didn't want people to believe him.
The reason why we cannot rely on out emotions in the pursuit of knowledge is because people feel differently about things. One person feels one thing and another feels something different, but people can agree that one plus one equals two--that's math, and it has nothing to do with emotion. Another example in history that shows that trusting your emotions can be harmful is the atom bomb. The US was so intent emotionally on defeating the Japanese, that they created the atom bomb which forced the Japanese to surrender. However, it had horrible consequences as it was developed by other nations and can destroy entire nations if used. This shows that trusting one's emotions while pursuing knowledge can lead to very dangerous and unintended consequences.
Before having all the advanced technology that we have now, dealing with medicine and injuries was very difficult to do. Human science has several examples which prove that one’s emotions can not be trusted. People had theories and types of healing that actually caused more harm than they did well in terms of helping sick people. Before having modern technology, there was a time where bloodletting was a solution. From being severely ill to having...