The word tacit is used to define something that is not expressed, but is understood. According to its etymology, this word comes from the Latin “tacitus” which means “quiet” or “silent”. Therefore its concept refers to everything that is implicit, that is, what is known is perceived, without the need to name it. In the area of grammar, the tacit subject is one that is present in the sentence without the need to mention it. For example "they go to the beach", in this sentence the tacit subject is: "they", in the sentence it is unknown who are those who go to the beach, however it is from the verb where the pronoun to which they are associated comes from. It is important to clarify that the subject is not always indeterminate, they can also refer to oneself, that is to say "I", for example "I ran in the park yesterday".
On the other hand, there is tacit or implicit knowledge, created by the philosopher and scientist Michael Polanyi, which refers to all the learning obtained through personal experiences, intuition, the own point of view, that is to say all the subjective elements that are difficult to express, but that are inside each human being. Polanyi was a strong critic of absolute objectivity, he considered that through subjective knowledge one could reach the confirmation of a reality. For a person to understand and learn from a situation, he must first experience it. For example, riding a bicycle is considered tacit knowledge. Someone will tell you how to do it, however it will not be enough, to do it right the first time, it will be the experience that will help you learn to ride the bike.
