Scientists also advocate a questioning attitude toward old theories. Should any doubt arise, urgent attention will be given to locate the error and to search for a new theory to replace the old. Two Nobel laureates from China, Professor C.N. Yang and Professor C.T. Lee, received the prizes as a result of disproving the law of parity, which was accepted by the physics world. Thus scientists do not believe in absolutes. Toward theories and beliefs in philosophy and religion, they also maintain a suspicious and reserved attitude.
Many scientists clearly understand the restrictions of scientific methods.
It has been mentioned that the spirit, the soul, and God in Heaven are outside the range of scientific investigation and discussion. Philosophers and the Christian church also frequently question the followers of scientism. Even though science cannot prove the existence of things in the spiritual world, it cannot prove that they do not exist either. Even though science cannot prove that God exists, it also cannot prove that God does not exist. A fisherman, who used a fishnet with two-inch wide mesh, caught only fish longer than two inches.