Alexander von Humboldt

Nature everywhere speaks to man in a voice familiar to his soul.

The blue of the sky compensates for the brevity of life.

Die gefährlichste aller Weltanschauungen ist die Weltanschauung der Leute, welche die Welt nicht angeschaut haben.

What speaks to the soul escapes our measurements.

The sun and distant stars appeared to mingle in the perfection of the same natural order, and I felt, in the stillness of the tropical night, how much more alive and near to the heavens was this part of the earth.

Alles ist Wechselwirkung.

People often say that I'm curious about too many things at once. But can you really forbid a man from harboring a desire to know and embrace everything that surrounds him?

In the great chain of causes and effects, no single fact can be considered in isolation.

I am more and more convinced that our happiness or unhappiness depends far more on the way we meet the events of life than on the nature of those events themselves.

Nature, considered rationally, that is to say, submitted to the process of thought, is a unity in diversity of phenomena; a harmony, blending together all created things, however dissimilar in form and attributes; one great whole animated by the breath of life.