1148

Science, its principles and rules.

Science is the observation of things possible, whether present or past; prescience is the knowledge of things which may come to pass, though but slowly.

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

1147 * 1149

XVIII * XX

Notebooks of Leonoardo da Vinci

XIX: Philosophical Maxims. Morals. Polemics and Speculations.

. . .

Prayers to God.

1132,

1133

The powers of Nature.

1134,

1135,

1136,

1137,

1138,

1139

Psychology.

1140,

1141,

1142,

1143,

1144,

1145,

1146,

1147

Science, its principles and rules.

1148,

1149,

1150,

1151,

1152,

1153,

1154,

1155,

1156,

1157,

1158,

1159,

1160,

1161

What is life?.

1162,

1163

Death.

1164

How to spend life.

1165,

1166,

1167,

1168

. . .