The names of the plants ought to be stable [certa], consequently they should be given to stable genera.

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

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

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

Nature does not proceed by leaps.

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

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.

Stones grow, plants grow, and live, animals grow live and feel.

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

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.

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.

Beauty fades and the body becomes old, but nothing can dull the shine of a woman with a good heart.

It is not very important where you are, but where your thoughts are taking you is important.

That an error made on your own is safer than ten truths accepted on faith, because the first leaves you the means to correct it but the second destroys your capacity to distinguish truth from error.

Whenever you have war, you often have more deaths because the medical system and the food system breaks down, than you have directly through violence.

I pray thee let me and my fellow have a haire of the dog that bit us last night.

The Clinton camp has been able to project that kind of neo-McCarthy hysteria: that Russia is responsible for everything.

Our generation has the ability and the responsibility to make our ever-more connected world a more hopeful, stable and peaceful place.

It's going to be a night of partying and heavy drinking. Or as Charlie Sheen calls it: Breakfast.

Prosperity in the form of wealth works exactly the same as everything else. You will see it coming into your life when you are unattached to needing it.

Time is the only commodity we deal with which cannot be counterfeited, stolen or placed in inventory. Remember, time is irreplaceable.