translate English to French: His initiative and passion for new undertakings are so great that no criticism, even permanent grumble of his dual ( Balzac, The Critic ) who condemns almost each display of enthusiasm, can spoil his mood.
Grâce à ses initiative et exigence il est souvent deçu des objets de ses sentiments. Ceux-ci sont "les autres" ne comprenant pas assez les élans de leur âme.