Without imagination, there can be no genuine ardor in any pursuit or for any acquisition, and without imagination, there can be no genuine morality, no profound feeling of other men's sorrow, no ardent and persevering anxiety for their interests.

He has no right to his life when his duty calls him to resign it. Other men are bound... to deprive him of life or liberty, if that should appear in any case to be indispensably necessary to prevent a greater evil.

Innocence is not virtue. Virtue demands the active employment of an ardent mind in the promotion of the general good. No man can be eminently virtuous who is not accustomed to an extensive range of reflection.

There can be no passion, and by consequence no love, where there is not imagination.

Since it is one of the great attributes of our species to be susceptible of improvement and capable of experiencing the most beneficial changes, for this reason what are vulgarly called 'venerable establishments' will often range themselves in opposition to the best interests of the community.

The real or supposed rights of man are of two kinds, active and passive; the right in certain cases to do as we list; and the right we possess to the forbearance or assistance of other men.