The outside world was wont to regard him as a mystic; and the mystical, or sacramental, view of life enters, it is true, very largely into his teaching.
Having secretly become a Christian, Sebastian was wont to encourage those of his brethren who in the hour of trial seemed wavering in their profession.
Vieta is wont to be called the father of modern algebra.
He, no doubt, like al-Asma`i and Abu `Ubaida, also himself visited the areas occupied by the tribes for their camping grounds in the neighbouring desert; and adjacent to Kufa was al-IIIra, the ancient capital of the Lakhmid kings, whose court was the most celebrated centre in pre-Islamic Arabia, where, in the century before the preaching of the Prophet, poets from the whole of the northern half of the peninsula were wont to assemble.
The prince walked in quickly and jauntily as was his wont, as if intentionally contrasting the briskness of his manners with the strict formality of his house.