Definition.com
The Mind (n.) is known only as we know matter: by perception, though it be in this case internal.
Definition.com
The Mind (n.) is never perceived; we perceive merely separate ideas, memories, feelings, etc.
Definition.com
The Mind (n.) is not a substance, an organ that has ideas; it is only an abstract name for the series of ideas; the perceptions; memories and feelings are the mind
Definition.com
A Mind (n.) is nothing but a heap or collection of different perceptions, united together by certain relations, and supposed, though falsely, to be endowed with a perfect simplicity and identity.
Definition.com
Mind (n.) are mirrors to one another, reflecting each other's emotions and reverberating them until they decay by insensible degrees.