Science is the poetry of the intellect and poetry the science of the heart's affections..
The intellect has only one failing, which, to be sure, is a very considerable one. It has no conscience..
First the education of the senses, then the education of the intellect..
Sarcasm is an abuse of the intellect..
A deliberate plan is not always necessary for the highest art; it emerges..
Jesting, often, only proves a want of intellect. [Fr., La moquerie est souvent une indigence d'esprit.].
There is nothing more perplexing in life than to know at what point you should surrender your intellect to your faith..
If I think, I am lost..
Ten men have failed from defect in morals, where one has failed from defect in intellect..
The intellect is good but until it has become the servant of the heart, it is of little avail..
There is an intimate interdependence of intellect and morals..
Everything is beautiful seen from the point of the intellect, or as truth. But all is sour if seen as experience..
Useful manual labour, intelligently performed, is the means par excellence for developing the intellect..