“Dogmatism is the greatest of mental obstacles to human happiness.”
“The greatest obstacle to human liberty is that the vast majority of people do not wish to be free.”
“The greatest obstacle to pleasure is not pain; it is delusion.”
“The greatest obstacle to connecting with our joy is resentment.”
“Humanity's greatest achievement will come when the happiness of some will no longer be the sadness of others.”
“The greatest obstacle to discovering the shape of the earth, the continents, and the oceans was not ignorance but the illusion of knowledge.”