San Giovanni: 187.
San Paolo: 136, 139.
San Tommaso: 189.
Sarpi: 199.
Schipa: 195.
Schopenhauer: 17-20, 23, 53, 104.
Shakespeare: 216.
Sighele: 202.
Spencer: 21.
Spinoza: 68, 265.
Sully Prudhomme: 61, 63, 65-70, 75, 77, 80-83, 87, 91, 92, 98, 103, 111, 114, 142.
Staël 18.
Taine: 12, 241.
Tcheng-ki-tong: 156, 158, 160.
Thomson: 134.
Tolstoi: 20, 29, 32-36, 38, 40, 45-48, 53, 55, 56, 63, 72, 110-113, 117, 139, 157, 170, 200, 210, 234.
Velasquez: 181.
Verlaine: 200.
Verne: 15.
Viazzi: 148.
Villars: 193.
Wagner: 19, 53, 200, 234, 245.
Washington: 216.
Weyler: 193, 194.
Zola 200, 227-234.
