No, not all philosophers had paranoia. Paranoia is a mental health condition characterized by excessive suspicion and distrust of others, often leading to irrational beliefs and behaviors. While some historical figures, including philosophers, may have exhibited signs of paranoia, it would be incorrect and unfair to generalize this to all philosophers.
Philosophers, like individuals in any other profession or walk of life, come from diverse backgrounds and experiences, and their mental health can vary widely. Some philosophers may have struggled with mental health issues, including paranoia or other conditions, while others may not have. It is essential to recognize that mental health is a complex and multifaceted aspect of human life and not something that can be universally applied to any group of individuals, including philosophers.
As with any profession or community, it's essential to treat individuals with empathy and understanding, recognizing that mental health challenges can affect anyone, regardless of their occupation or status. If you or someone you know is experiencing mental health difficulties, seeking support from a mental health professional is crucial for understanding and managing those challenges.