sentences:  Steele was a man of medium height with a frank and open countenance, with an unselfish outlook on life, and a personality that attracted both his students and his associate workers.He was a tireless worker and an ideal researcher – honest, patient, imaginative and cautious.Circumstances prevented him doing a large amount of original work, but much of the work he did during the war years was of a secret nature, the value of which cannot be estimated.