"i use science not philosophy. philosophy cant reach truth"

Philosophy is a broad field that encompasses the study of knowledge, reality, values, and reasoning. It involves the use of critical thinking and logical reasoning to analyze and understand the world around us. Science can be considered a type of philosophy because it is a systematic approach to understanding the natural world.

In daily life, philosophy is used in a variety of ways. For example, people may use philosophical thinking to make decisions, solve problems, or understand the motivations and beliefs of others. Philosophy is also used in fields such as law, politics, and education—where critical thinking and logical reasoning are paramount.

The statement "philosophy cannot understand truth" is self-refuting because it is itself a philosophical claim about truth.
In other words, the statement is attempting to make a truth claim about the nature of truth and philosophy, which means that philosophy is being used to understand truth. This contradicts the original statement, which claimed that philosophy cannot understand truth.

Before the term "science" was coined, the study of the natural world was often referred to as natural philosophy. This term was used from the ancient Greeks until the 19th century to describe the study of the physical world and the laws that govern it.
In the early modern period, the term "natural philosophy" was used to describe the study of the natural world, including subjects such as physics, astronomy, and biology. It was not until the 19th century that the term "science" began to be widely used to describe the study of the natural world.