Al-Razi displayed an insatiable curiosity and a lifelong dedication to learning. He constantly sought knowledge from diverse sources, read extensively, and engaged in discussions with scholars and experts. He was known to spend much of his time reading and writing.

Despite his vast knowledge and achievements, Al-Razi was known for his humility and self-critical attitude. He acknowledged the limitations of his own understanding and was open to learning from others. He often challenged his own theories and hypotheses in search of better explanations.

Al-Razi displayed great empathy and compassion toward his patients. He genuinely cared about their well-being and dedicated himself to providing the best possible medical care. He was known for his kindness and patience, especially when dealing with patients from disadvantaged backgrounds.

Al-Razi's views, particularly in philosophy, were controversial and caused him to have detractors. His commitment to reason sometimes led to confrontations. Accounts vary, and a complete picture of his personal relationships remains limited.