“In natural science the principles of truth ought to be confirmed by observation.”

Botany is based on fixed genera.

Nature’s economy shall be the base for our own, for it is immutable, but ours is secondary. An economist without knowledge of nature is therefore like a physicist without knowledge of mathematics.

I demand of you, and of the whole world, that you show me a generic character by which to distinguish between Man and Ape. I myself most assuredly know of none.

We admit as many genera as there are different groups of natural species of which the fructification has the same structure.

Fragments of the natural method must be sought with the greatest care. This is the first and last desideratum among botanists. Nature makes no jumps. All taxa show relationships on all sides like the countries on a map of the world.

Linnea- A plant of Lapland, lowly, insignificant, disregarded, flowering but for a brief space – from Linnaeus who resembles it.

A herbarium is better than any illustration; every botanist should make one.

A professor can never better distinguish himself in his work than by encouraging a clever pupil, for the true discovers are among them, as comets amongst the stars.

If you do not know the names of things, the knowledge of them is lost, too.

Natural bodies are divided into three kingdomes of nature: viz. the mineral, vegetable, and animal kingdoms. Minerals grow, Plants grow and live, Animals grow, live, and have feeling.

It is not God, but people themselves who shorten their lives by not keeping physically fit.

A practical botanist will distinguish at the first glance the plant of the different quarters of the globe and yet will be at a loss to tell by what marks he detects them.

The species and the genus are always the work of nature [i.e. specially created]; the variety mostly that of circumstance; the class and the order are the work of nature and art.

The plant kingdom covers the entire earth, offering our senses great pleasure and the delights of summer.

Blessed be the Lord for the beauty of summer and spring, for the air, the water, the verdure, and the song of birds.

No one has been a greater botanist or zoologist. No one has written more books, more correctly, more methodically, from personal experience. No one has more completely changed a whole science and started a new epoch.

Russia and China are very natural partners. We are neighbors with an immense common border.

I think most people have a natural instinct to rebel.

Your crush is coming, act natural.

When I say ‘hero’, do not picture someone with strength to fight and conquer evil – because evil is not something that can ever be conquered or defeated. Evil is natural. It is innate in all humans.

Do not help your jailers to pretend that their jail is your natural state of existence.

The divine gift of life must be promoted, guarded, and protected from conception to its natural end.

Practice makes perfect. After a long time of practicing, our work will become natural, skillfull, swift, and steady.

My musical taste and image is going to change naturally. It’s not forced; I do what comes natural to me.