This is the same passage in the English translation of Napoleon as a General by Yorck von Wartenburg, pages 4-5. It is located in Chapter Chapter 1-Youth and Early Career: This edition was edited by Major Walter James and was published as part of The Wolseley Series in 1955.

'Retiring and diligent, he prefers study to amusements of any kind, and delights in the reading of good authors; he is devoted to abstract sciences, with little leaning to others, is well versed in mathematics and geography; is taciturn, loves solitude, is obstinate, proud, and exceptionaly inclined to egotism; speaks little, is energetic in his answers, ready and severe in his refutations; possesses much love of self, is ambitious and hardworking. This young man deserves to be pushed on.'

I don't believe that the 'evaluation' is harsh. It is written as an officer's fitness report and the author of it is quite succinct in the last sentence as to Napoleon's overall worth as a French officer.

I do believe that the date is wrong and should be 1785. Napoleon was accepted into the Ecole Royal Militaire in 1784 and he completed the two-year course in one year and was commissioned a second lieutenant of artillery.