The republic, as I at least understand it, means association, of which liberty is only an element, a necessary antecedent. It means association, a new philosophy of life, a divine Ideal that shall move the world, the only means of regeneration vouchsafed to the human race.
The sacrifice which causes sorrow to the doer of the sacrifice is no sacrifice. Real sacrifice lightens the mind of the doer and gives him a sense of peace and joy. The Buddha gave up the pleasures of life because they had become painful to him.
The secret of life isn't an attempt to explain everything but, rather, to understand that certain things can't be explained. Demanding that everything is to be dissected neath a microscope is madness. Hence the attempt to explain everything is madness.
The shadows of the mind are like those of the body. In the morning of life they all lie behind us, at noon we trample them under foot, and in the evening they stretch long, broad, and deepening before us.