You must grow like a tree, not like a mushroom

What a misfortune it would be, religiously speaking and educationally speaking, if we could only work happily with those who saw things as we do.

The great thing and the hard thing is to stick to things when you have outlived the first interest, and not yet got the second, which comes with a sort of mastery.

Simplicity of life is an essential for greatness of life.

Isn't it wonderful that two of the most sacred and symbolic plants, the olive and the vine, live on almost nothing, a terrace of limestone, sun and rain.

Do not wait for ideal circumstances, nor the best opportunities; they will never come.

It is better to begin a great work than to finish a small one.