1158

Science, its principles and rules.

There is no certainty in sciences where one of the mathematical sciences cannot be applied, or which are not in relation with these mathematics.

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

1157 * 1159

XVIII * XX

Notebooks of Leonoardo da Vinci

XIX: Philosophical Maxims. Morals. Polemics and Speculations.

. . .

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,

1169,

1170,

1171,

1172,

1173,

1174,

1175,

1176,

1177,

1178

. . .