We are born with a genetically preprogrammed set of life-sustaining perceptions called instincts. Instincts represent perceptions provided by nature. From mid- gestation onward, our brains are wired for learning, creating new perceptions from environmental experiences. These ‘learned’ perceptions are collectively ascribed to nurture.
As you are undoubtedly aware, not all learned perceptions are necessarily accurate. Many perceptions we hold about the world are incorrect. Consider for example, the perception that genes ‘control’ biology. That is in fact, a misperception. Learned perceptions may be correct or incorrect. Consequently, we may accurately refer to acquired ‘perceptions’ as beliefs, with the assumption that they represent “truths.” Since ‘perceptions’ control behavior and gene activity, then it is logical to conclude that in humans, beliefs control biology.