The prejudices of ignorance are more easily removed than the prejudices of interest; the first are all blindly adopted, the second willfully preferred.

Incredulity is not wisdom, but the worst kind of folly. It is folly, because it causes ignorance and mistake, with all the consequents of these; and it is very bad, as being accompanied with disingenuity, obstinacy, rudeness, uncharitableness, and the like, bad dispositions; from which credulity itself, the other extreme sort of folly, is exempt.

Your greatness is measured by your kindness - Your education and intellect by your modesty - Your ignorance is betrayed by your suspicions and prejudices - Your real caliber is measured by the consideration and tolerance you have for others.

In other living creatures ignorance of self is nature; in man it is vice.

Discourtesy does not spring merely from one bad quality, but from several - from foolish vanity, from ignorance of what is due to others, from indolence, from stupidity, from the distraction of thought, from contempt of others, from jealousy.

Profound ignorance makes a man dogmatic. The man who knows nothing thinks he is teaching others what he has just learned himself; the man who knows a great deal can't imagine that what he is saying is not common knowledge, and speaks indifferently.

The truest characters of ignorance are vanity and pride and arrogance.

Knowledge is not happiness, and science but an exchange of ignorance for that which is another kind of ignorance.

The failure of our modern world, with its moral and ethical collapse, may be traced directly to our spiritual ignorance and moral disobedience. The ethical conditions under which we live are disgracefully unsanitary. It is futile to expect peace and goodwill on earth while our homes are infested with the germs of selfishness, irreverence and lust. The world-wide epidemic of hatred, cruelty, murder and war is the inevitable result of our moral and spiritual disobedience. We cannot break the laws of the universe with impunity.

Every man should study conciseness in speaking; it is a sing of ignorance not to know that long speeches, though they may please the speaker, are the torture of the hearer.

Fear breeds lack of experience, lack of experience breeds ignorance, ignorance breeds more fear. It is a vicious cycle.

Must helpless man, in ignorance sedate, roll daring down the torrent of his fate?

The ignorance of one voter in a democracy impairs the security of all.

Nothing in the world is more dangerous than a sincere ignorance and conscientious stupidity.

Anyone who wants to be cured of ignorance must confess it... Wonder is the foundation of all philosophy, inquiry its progress, ignorance its end.

Until one is committed, there is hesitancy, the chance to draw back, always ineffectiveness. concerning all acts of initiative (and creation) there is one elementary truth, the ignorance of which kills countless ideas and splendid plans: that the moment one definitely commits oneself, then Providence moves too. All sorts of things occur to help one that would never otherwise have occurred. A whole stream of events issues from the decision, raising in one's favor all manner of unforeseen incidents and meetings and material assistance, which no man could have dreamed would have come his way. I have learned a deep respect for one of Goethe's couplets: Whatever you can do, or dream you can, begin it. Boldness has genius, power and magic in it.

The sum and total of man’s ignorance lie in the misconception of the power that surround his identity. He must realize that though his intellect is but a grain in the sands of knowledge, yet hid in that grain is the essence of the Whole.

The bravery founded on hope of recompense, fear of punishment, experience of success, on rage, or on ignorance of danger, is but common bravery, and does not deserve the name. True bravery proposes a just end; measures the dangers, and meets the result with calmness and unyielding decision.

They set the slave free, striking off his chains. Then he was as much of a slave as ever. He was still chained to servility. He was still manacled to indolence and sloth, he was still bound by fear and superstition, by ignorance suspicion and savagery. His slavery was not in the chains, but in himself. They can only set free men free. And there is no need of that. Free men set themselves free.