Liberty is to the collective body, what health is to every individual body. Without health no pleasure can be tasted by man without liberty, no happiness can be enjoyed by society.
Use a gyroscope to demonstrate how, over time, we become fixed in our ways, personalities, and, as a mature person, psychologically resistant to change. With EFFORT, however, we can make changes. We are not today exactly what we were yesterday. We are almost imperceptibly different. We do change with time and we can control to an extent the direction of the changes.
As regards the celebrated struggle for life, it seems to me for the present to have been rather asserted than proved. It does occur, but as the exception; the general aspect of life is not hunger and distress, but rather wealth, luxury, even absurd prodigality -- where there is a struggle it is a struggle for power.