51 



position to the interest of the parent, or bj atrocious crimes ; 

 and conversely it may be' increased by the merit of the off- 

 spring, and dutiful, affectionate behaviour. 



153. Filial love, or that of children to their parents is also 

 founded on instinct, but an instinct much weaker than of pa- 

 rerrts for them. It is increased by the benefits we receive 

 from them ; it is diminished by second marriages, a separa- 

 tion or opposition of interests, or partiality to one of the 

 brethren. 



159- Fraternal love arises from an instinct still weaker than 

 the foregoing, and partly on the mutual and immediate re- 

 lation to common parents, (hence it is weaker when one of 

 the parents is different from that of the other,) and partly 

 on a sense of community of interests. It is encreased by 

 mutual protection and similarity of character, and diminish- 

 ed by the partiality of either of the parents to one of them, 

 and opposition of interests. 



1 60. Love of more distant relations is founded on the same 

 principles, but weakened in proportion to their distance from 

 the common stock. 



161. Love founded on consanguinity or alliance or friend- 

 ship is called affection. 



162. Sexual love, this also arises 1st from an instinct im- 

 planted in the constitution of all animals, and more perma- 

 nently in the human species, destined to perpetuate life; yet 



H 2 when 



