As far as the latter is concerned this is a mere surmise, or rather an inference from indirect proofs, for, strange to say, although Chopin mentions Hummel frequently in his letters, he does not write a syllable that gives a clue to his sentiments regarding him.

The older master, on the other hand, shows by his inquiries after his younger brother in art and the visits he pays him that he had a real regard and affection for him.
It is also to be regretted that Chopin says in his letters nothing of Paganini's appearance in Warsaw.

The great Italian violinist, who made so deep an impression on, and exercised so great an influence over, Liszt, cannot have passed by without producing some effect on Chopin.
That the latter had a high opinion of Paganini may be gathered from later utterances, but what one would like is a description of his feelings and thoughts when he first heard him.

Paganini came to Warsaw in 1829, after his visit to Berlin.

In the Polish capital he was worshipped with the same ardour as elsewhere, and also received the customary tributes of applause, gold, and gifts.