'He who knows all can do all,' thought Leonardo. 'I have only to know; and there shall be wings.'
XI
On one of the final zigzags of the path he felt himself touched from behind, and turning saw Giovanni Boltraffio who, hat in hand, eyes half shut, head bent, was battling with the wind, and had evidently been calling for some time unheard. When he saw the Master with long hair streaming on the blast, and look of indomitable will, his thoughtful eyes, deep lines on his forehead, and overhanging brows contracted in a frown, seemed to the disciple so strange and terrible as to be barely recognisable. Even the broad folds of his red cloak bellying in the wind were like the pinions of some strange bird.
Giovanni shouted as loud as he could, but he was so much out of breath he could only articulate broken phrases.
'Just come—from Florence. Letter—important—told to give it into your hands at once!'
Leonardo guessed at a communication from Cæsar Borgia, and quickly recognised the writing of Messer Agapito his secretary.
'Go down at once,' said Leonardo, seeing Giovanni blue with cold. 'I will follow you immediately.' And he watched Boltraffio as he fought his way through the storm, clinging to frail boughs of low-growing shrubs, crawling over rocks, bending double, absurdly small and weak in comparison with his surroundings and the fury of the elements. He appeared an epitome of all human weakness; and, watching him, Leonardo was reminded of the curse of some grave impotence which seemed to have lain upon his whole life, which had, he feared, condemned him to eternal sterility, besides depriving him of the sympathy of his fellows.
'My Wings!' he thought, 'Ah! will not they fail like everything else?'
And he remembered the words spoken by Astro in his delirium, the answer of the Son of Man when the devil would have seduced him by the terror of the abyss, by the fascination of flight: 'Thou shalt not tempt the Lord thy God!'