To comprehend an idea, a person must simultaneously accept it as true. Conscious analysis - which, depending on the idea, may occur almost immediately or with considerable effort - allows the mind to reject what it intially accepted as fact.

Care of the poor is incumbent on society as a whole.

I saw that all things I feared, and which feared me, had nothing good or bad in them save insofar as the mind was affected by them.

I should attempt to treat human vice and folly geometrically... the passions of hatred, anger, envy, and so on, considered in themselves, follow from the necessity and efficacy of nature... I shall, therefore, treat the nature and strength of the emotion in exactly the same manner, as though I were concerned with lines, planes, and solids.

Men who are ruled by reason desire nothing for themselves which they would not wish for all mankind.

In practical life we are compelled to follow what is most probable ; in speculative thought we are compelled to follow truth.

A free man, who lives among ignorant people, tries as much as he can to refuse their benefits. .. He who lives under the guidance of reason endeavours as much as possible to repay his fellow's hatred, rage, contempt, etc. with love and nobleness.