Knowledge is observation and is given to those who would…

There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result…

— Denis Diderot

“He handed the dust pan and brush over. I knew they wouldn’t be much use in cleaning the floor. I also knew the real…

— Fiona Thrust

“But life can give a lot. If you can’t see inside the heart no matter how you look, then why not look? Why not…

— Mary Gaitskill

Biochemists and biologists who adhere blindly to the Darwinism theory search for results that will be in agreement with their theories and consequently orient…

— Pierre-Paul Grasse

Nothing in Scientology is true for you unless you have observed it and it is true according to your observation

— L. Ron Hubbard

Despite the amount of suffering, pain, misery, sorrow and travail which can exist in life, the reason for existence is the same reason as…

— L. Ron Hubbard

That human life must be some kind of mistake is sufficiently proved by the simple observation that man is a compound of needs which…

— Arthur Schopenhauer

Science has to be understood in its broadest sense, as a method for apprehending all observable reality, and not merely as an instrument for…

— Alexis Carrel

In order that the facts obtained by observation and experiment may be capable of being used in furtherance of our exact and solid knowledge,…

— William Whewell

In order to the attaining of all useful knowledge this is most necessary, that we fear God; we are not qualified to profit by…

— Matthew Henry

The wisdom or the essence of Guru Tattwa is a balance. Like when you maintain a plant, if you do not give it water…

— Nirmala Srivastava

We know nothing of the principle of health, the positive of which pathology is the negative, except from observation and experience. And nothing but…

— Florence Nightingale

Observation and theory get on best when they are mixed together, both helping one another in the pursuit of truth. It is a good…

— Arthur Eddington

We ought to observe that practice which is the hardest of all-especially for young physicians-we ought to throw in no medicine at all-to abstain-to…

— John Randolph of Roanoke

The young man [Turgot] destined for an ecclesiastical career was placed within walls carefully designed to keep out all currents of new thought; his…

— Andrew Dickson White