Happiness in nature is a double happiness; sorrow in nature is a half sorrow!

If you have ever walked in Paris, you will see that Paris will ever walk in your memoires!

Seek truth! Seek truth in the darkness, under the oceans, above the clouds; seek it everywhere and every time! Stop deceiving yourself with the untruth, seek the truth!

Talking wisely to the ignorant is throwing precious seeds to the desert sands!

When somebody speaks a language that we don't know, we often imagine that some important things are being said!

The only acceptable imperialism is the Imperialism of the Forest! Let the whole world are invaded by the tree-soldiers!

All men leave the harbour of youth, but only few reach the very far island of wisdom!