The will. It is not difficult to do anything when one is inspired by the clear perception of a duty. But what is hard is that when one is suffering this clear perception vanishes, and all that remains is awareness of a suffering which it is impossible to bear.
But the converse is also true: at the moment of taking the decision, the duty is present and the suffering is still far away. The will could not triumph if it had not fight against forces stronger than itself. The whole art of willing consists in taking advantage of the moment before the struggle begins to contrive in advance that one’s objective situation at the moment when one is weak shall be as one desires it to be…
The will’s only weapon is that it is able, in so far as it consists of thought, to embrace the different moments of time, whereas the body is limited to the present. Therefore, in short, it is simply a matter of withholding the assistance of thought from the passions.
It is not a question of “making resolutions” but of trying one’s hands in advance.