Complex sentence: As a young student in Paris, Guénon observed and became involved with some milieux which were, at that time, under the supervision of Papus, although not taking them seriously Paul Chacornac, "The Simple Life of René Guénon".
Split into simpler sentences: As a young student in Paris, Guénon observed and became involved with some milieux which were, at that time, under the supervision of Papus, although not taking them seriously. Around this time (according to indications reproduced by his biographer P. Chacornac), Paul Chacornac, "The Simple Life of René Guénon".