The most difficult thing is what is thought to be the simplest; to really see the things which are before your eyes.

And I have again observed, my dear friend, in this trifling affair, that misunderstandings and neglect occasion more mischief in the world than even malice and wickedness. At all events, the two latter are of less frequent occurrence.

There is nothing in the world more shameful than establishing one's self on lies and fables.

Let your trouble be Light will follow dark Though the heaven falls You may hear the lark.

Superstition is part of the poetry of life.

Plunge boldly into the thick of life, and seize it where you will, it is always interesting.

In nature we never see anything isolated, but everything in connection with something else which is before it, beside it, under it and over it.