One is never deceived; one deceives oneself.

Like the star that shines afar, Without haste and without rest, Let each one wheel with steady sway Round the task that rules the day, And do their best.

Beware of dissipating your powers; strive constantly to concentrate them.

With the growth of knowledge our ideas must from time to time be organized afresh. The change takes place usually in accordance with new maxims as they arise, but it always remains provisional.

I am what I am, so take me as I am!.

What a torment it is to see so much loveliness passing and repassing before us, and yet not dare to lay hold of it!

What is not fully understood is not possessed.