1147

Psychology.

All our knowledge has its origin in our preceptions.

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

Notebooks of Leonoardo da Vinci

XIX: Philosophical Maxims. Morals. Polemics and Speculations.

. . .

Prayers to God.

1132,

The powers of Nature.

1134,

1135,

1136,

1137,

1138,

Psychology.

1140,

1141,

1142,

1143,

1144,

1145,

1146,

Science, its principles and rules.

1148,

1149,

1150,

1151,

1152,

1153,

1154,

1155,

1156,

1157,

1158,

1159,

1160,

What is life?.

1162,

Death.

How to spend life.

1165,

1166,

. . .