Ignorance

used to imply that when someone is ignorant of the dangers involved in a situation, they may act more boldly or recklessly than someone who is aware of the risks

He invested all his life savings in a business he knows nothing about.Nothing so bold as a blind mare!

used to suggest that some people are so stubborn and resistant to new ideas or information that they refuse to listen or pay attention, even if it is in their best interest

The doctor warned him to quit smoking, but he continued until he developed lung cancer.There are none so deaf as those that will not hear.

used to imply that people may choose to remain ignorant of certain things to protect themselves from potential emotional distress

She doesn't want to read the news because what the eye does not see, the heart does not grieve over.

used to suggest that when someone lacks knowledge or understanding about a certain subject, they tend to have a heightened admiration or reverence for it

She had always admired the celebrity from afar, but after meeting them in person, she realized that admiration is the daughter of ignorance - she had not known the person behind the public persona.

used to imply that someone with a narrow-minded perspective can never fully understand the vastness and diversity of the world beyond their limited environment or worldview

The boss reminded his team members about the proverb frog in the well knows nothing of the sea to encourage them to consider alternative approaches and perspectives when faced with challenges at work.

used to imply that ignorance is a result of one's own choices or lack of effort to gain knowledge and understanding, and that it can lead to negative consequences

The CEO told new hires that any ignorance is a voluntary misfortune in this day and age, advising them to constantly learn and update their skills in order to progress in their careers.

used to suggest that not knowing certain information can be preferable to facing it, particularly when it is unpleasant or burdensome

She decided not to read the reviews before the performance—ignorance is bliss.

used to imply that some people choose to ignore the truth and refuse to see what contradicts their beliefs

She refuses to accept the fact that her relationship is toxic and harmful to her well-being; there are none so blind as those that will not see.

used to imply that people may be unable to see the flaws or potential dangers in something they strongly believe in, due to their emotional investment in it

The man believed his actions were justified but could not see how foolish he appeared to others because men are blind in their own cause and cannot judge themselves objectively.

used to suggest that people often lack knowledge or understanding of the lives of others, especially when their lifestyles, experiences, and perspectives are very different

The widening wealth gap between the rich and the poor is a stark reminder that half the world knows not how the other half lives.