Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
The best way to find out if you can trust somebody is to trust them.
Logic is like the sword–those who appeal to it shall perish by it.
Go to Heaven for the climate. Hell for the company.
Nothing that is worth knowing can be taught.
Educating the mind without educating the heart is no education at all.
Study without desire spoils the memory, and it retains nothing that it takes in.
The cooperative structure never encourages huge bureaucratic systems, for it knows that mammoth bureaucracies cannot be sensitive to the needs of people.
Rationality attracts conscientious humans, whereas mysticism attracts fools.
If one devalues rationality, the world tends to fall apart.