Quotes About Knowledge

one should not regard anything that one accepts as quite certain, but only as probable in a greater or a less degree. Not to be absolutely certain is, I think, one of the essential things in rationality.

Gran parte de las dificultades por las que atraviesa el mundo se deben a que los ignorantes están completamente seguros y los inteligentes llenos de dudas.

compreender uma época ou uma nação devemos compreender sua filosofia e, para que compreendamos sua filosofia, temos de ser, até certo ponto, filósofos.

The whole problem with the world is that fools and fanatics are always so certain of themselves and wiser people so full of doubts.

Most of what I learnt at Cambridge had to be painfully unlearnt later; on the whole, what I had learnt for myself from being left alone in an old library had proved more solid.

The fundamental cause of trouble in the world is that the stupid are cocksure while the intelligent are full of doubt. Bertrand Russell (1872-1970)

although our age far surpasses all previous ages in knowledge, there has been no correlative increase in wisdom.

The point of philosophy is to start with something so simple as not to seem worth stating, and to end with something so paradoxical that no one will believe it.

Acquaintance with objects essentially consists in a relation between the mind and something other than the mind; it is this that constitutes the mind's power of knowing things. If we say that the things known must be in the mind, we are either unduly limiting the mind's power of knowing, or we are uttering a mere tautology.

A good world needs knowledge, kindness and courage. It does not need a regretful hankering after the past or a fettering of free intelligence by the words uttered long ago by ignorant men.

If any one asks: 'Why should I accept the results of valid arguments based on true premisses?' we can only answer by appealing to our principle. In fact, the truth of the principle is impossible to doubt, and its obviousness is so great that at first sight it seems almost trivial. Such principles, however, are not trivial to the philosopher, for they show that we may have indubitable knowledge which is in no way derived from objects of sense. The

Hegel thought that, if enough was known about a thing to distinguish it from all other things, then all its properties could be inferred by logic. This was a mistake, and from this mistake arose the whole edifice of his system. This illustrates an important truth, namely, that the worse your logic, the more interesting the consequences.

is clear that human knowledge must always be content to accept some terms as intelligible without definition

the Churches, everywhere, opposed as long as they could practically every innovation that made for an increase of happiness or knowledge here on Earth

The trouble with the world is that the stupid are cocksure, and the intelligent are full of doubt.

The examination system, and the fact that instruction is treated mainly as training for a livelihood, leads the young to regard knowledge, from a purely utilitarian point of view, as the road to money, not as the gateway to wisdom.

in the modern world the stupid are cocksure while the intelligent are full of doubt.

manevi bir çöküÅŸün en büyük belirtisi, kiÅŸinin yapt??? iÅŸin çok önemli olduÄŸunu düÅŸünmeye baÅŸlamas?d?r" insanlar bilgisiz doÄŸar, aptal deÄŸil, eÄŸitilerek aptal olurlar... dünyan?n en büyük problemi, ak?ls?z ve fanatik kiÅŸilerin kendilerinden son derece emin olmas?, buna kar??l?k zeki insanlar?n sürekli ÅŸüpheler içinde olmas?d?r.

fools and fanatics are always so certain of themselves, and wise people so full of doubts.

The demand for certainty is an intellectual vice.

The chief importance of knowledge by description is that it enables us to pass beyond the limits of our private experience. In spite of the fact that we can only know truths which are wholly composed of terms which we have experienced in acquaintance, we can yet have knowledge by description of things which we have never experienced.

All our knowledge, both knowledge of things and knowledge of truths, rests upon acquaintance (connaitre, kennen) as its foundation

self-consciousness is the source of all our knowledge of mental things.

Aristóteles podia ter evitado o erro de pensar que as mulheres têm menos dentes do que os homens simplesmente pedindo à Sra. Aristóteles que abrisse a boca enquanto os contava. Não o fez porque estava convencido de que sabia. Pensar que sabemos algo quando na verdade não sabemos é um erro fatal, a que todos somos vulneráveis.