Browse Quotes

The four questions of Tinbergen: What is the causation of the behaviour? How does it develop? What is its survival value? How did it evolve?

The bond of love is a bond of sorrow.

Nothing in biology makes sense except in the light of evolution.

The great conceptual innovations of science are not always the result of new facts, but often of a new way of looking at old facts.

Study nature, not books.

I have been a good girl, I have been a good girl, I have been a good girl.

A voyage of discovery is not a mere pleasure trip, but a serious undertaking, fraught with danger and demanding the utmost fortitude and perseverance.

All the works of the Lord are good, and He has made them all in their time.

The Earth is a living organism, and we are part of it. We are not separate from it.

Orangutans are not just animals; they are individuals with distinct personalities, emotions, and intelligence.

When you realize the value of all life, you dwell less on what is past and concentrate more on the preservation of the future.

The sea, once it casts its spell, holds one in its net of wonder forever.

An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.

Speak softly and carry a big stick; you will go far.

The object of our forest policy is not to preserve the forests from use, but to preserve them by use.

A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.

The mountains are calling and I must go.

Art is either plagiarism or revolution.

The great end of life is not knowledge but action.

The study of nature is the study of God's handiwork.