A practical man is a man who practices the errors of his forefathers.
The magic of first love is our ignorance that it can ever end.
We live in age of prudence. The leaders of the people now generally follow.
You asked me where I generally lived. In my workshop [i.e. in his study] in the mornings and always in the library in the evening. Books are companions even if you donโt open them.
No enemy is indeed so terrible as a man of genius.
There can be economy only where there is efficiency.