teaching him "the secret of memory and other things
that he knew."

The philosopher with untiring patience tried to instil into this dull
head the principles of logic, the elements of mathematics, and the
rudiments of the mnemonic art; but the pupil hated study, and had no
faculty of thought; yet he insisted that Bruno should make science
clearly known to him! But this was probably only to initiate a quarrel
with Bruno, whom he intended afterwards to betray, and deliver into the
hands of the Church.

The Holy Office would have laid hands on Bruno immediately on his
arrival in Italy, but being assured by Mocenigo that he could not
escape, they left him a certain liberty, so that he might more surely
compromise himself, while his enemies were busy collecting evidence
against him. When at last his eyes became opened to what was going on
about him, and he could no longer ignore the peril of his position, it
was too late; Bruno could not get away, and was told by Mocenigo that if
he stayed not by his own will and pleasure, he would be compelled to
remain where he was. Bruno, however, made his preparations for
departure, and sent his things on to Frankfort, intending to leave the
next day himself; but in the morning, while he was still in bed,
Mocenigo entered the chamber, pretending that he wished to speak with
him; then calling his servant Bartolo and five or six gondoliers, who
waited without, they forced Bruno to rise, and conducted him to a
garret, and locked him in. There he passed the first day of that
imprisonment which was to last for eight years. The next day he went
over the lagoon in a gondola, in the company of his jailors, who took
him to the prison of the Holy Office, and left him there. Levi devotes
many pages to the accusations brought against Giordano Bruno by the
Inquisitors, and the depositions and denunciations made against him by
his enemies. The Court was opened without delay, and most of the
provinces of Italy were represented by their delegates in the early part
of the trial; Bruno himself, being interrogated, gave an account in
detail of his life, of his wanderings, of his occupations and works:
serene and dignified before this terrible tribunal, he expounded his
doctrine, its principles, and logical consequences. He spoke of the
universe, of the infinite worlds in infinite space, of the divinity in
all things, of the unity of all things, the dependence and
inter-dependence of all things, and of t