That single thought is enough. The impulse increases to a wish, the wish to a desire, the desire to an uncontrollable longing, and the longing (to the deep regret and mortification of the speaker, and in defiance of all consequences,) is indulged.
Any who may wish to profit himself alone from the knowledge given him, rather than serve others through the knowledge he has gained from learning, is betraying knowledge and rendering it worthless
I am slow to listen to criminations among friends, and never espouse their quarrels on either side. My sincere wish is that both sides will allow bygones to be bygones, and look to the present & future only.
People are only influenced in the direction in which they want to go, and influence consists largely in making them conscious of their wishes to proceed in that direction.