The manuscript still lies in my desk unpublished.
As I was now engaged in studying the languages I easily learned to read Italian, Spanish, and Dutch books.
In view of this experience, which is not wholly personal, I have wondered whether the instruction of boys might not be shortened to give them more outdoor exercise.

In how brief a time the pupils, as men studying for their own benefit, not the teacher's, would acquire many things! Besides the languages, I studied, at first exclusively under Lepsius's thoroughly admirable instruction, ancient history and archeology.
Later I owed most to Gerhard, Droysen, Friederichs, and August Bockh.
A kind fate afterwards brought me into personal relations with the latter, whose lectures on the Athenian financial system were the finest and the most instructive I have ever heard.

What clearness, what depth of learning, what a subtle sense of humour this splendid old man possessed! I attended his lectures in 1863, and how exquisite were the allusions to the by no means satisfactory political conditions of the times with which he spiced them.

I also became sincerely attached to Friederichs, and it made me happy to be able to requite him in some small degree in Egypt for the kindness and unselfishness he had shown me in Berlin.
Bopp's lectures, where I tried to increase my meagre knowledge of Sanscrit, I attended, unfortunately, only a few hours.
The lectures of the African traveller Heinrich Earth supplied rich sources of material, but whoever expected to hear bewitching narratives from him would have been disappointed.

Even in more intimate intercourse he rarely warmed up sufficiently to let others share the rich treasure of his knowledge and experience.