Those who restrain desire, do so because theirs is weak enough to be restrained; and the restrainer or reason usurps its place & governs the unwilling. And being restrain'd it by degrees becomes passive till it is only the shadow of desire.
William BlakeNature in darkness groans and men are bound to sullen contemplation in the night: restless they turn on beds of sorrow; in their inmost brain feeling the crushing wheels, they rise, they write the bitter words of stern philosophy and knead the bread of knowledge with tears and groans.
William Blake