There is, I am sensible, an age at which every individual of you would choose to stop; and you will look out for the age at which, had you your wish,… - Jean-Jacques Rousseau

There is, I feel, an age at which an individual man would want to stop. You will seek the age at which you would want your species to have stopped. Dissatisfied with your present state for reasons that portend even greater grounds for dissatisfaction for your unhappy posterity, perhaps you would like to be able to go backwards in time.

There is, I feel, an age at which the individual man would want to stop: you will seek the age at which you would desire your Species had stopped. Discontented with your present state for reasons that foretell even greater discontents for your unhappy Posterity, perhaps you would want to be able to go backward in time. This sentiment must be the Eulogy of your first ancestors, the criticism of your contemporaries, and the dread of those who will have the unhappiness to live after you.

There is, I feel, an age at which the individual man would want to stop: you wi l seek the age at which you would desire your Species had stopped. Discontented with your present state for reasons that foretell even greater discontents for your unhappy Posterity, perhaps you would want to be able to go backward in time. This sentiment must be the Eulogy of your first ancestors, the criticism of your contemporaries, and the dread of those who will have the unhappiness to live after you.

What man loses by the social contract is his natural liberty and an unlimited right to everything he tries to get and succeeds in getting; what he gains is civil liberty and the proprietorship of all he possesses.

Si hubiera tenido hacha, ¿habría roto con el puño tan fuertes ramas? Si hubiese tenido honda, ¿lanzaría a brazo con tanta fuerza las piedras? Si hubiera tenido escalera, ¿treparía con tanta ligereza por los árboles? Si hubiese tenido caballos ¿sería tan rápido en la carrera? Dad al hombre civilizado el tiempo preciso para reunir todas esas máquinas a su derredor: no cabe duda que superará fácilmente al hombre salvaje. Mas si queréis ver un combate aún más desigual, ponedlos desnudos y desarmados frente a frente, y bien pronto reconoceréis cuáles son las ventajas de tener continuamente a su disposición todas sus fuerzas, de estar siempre preparado para cualquier contingencia y de conducirse siempre consigo, por así decir, todo entero

Slaves lose everything in chains, even the desire of escaping from them.