I read these words which are the sum of all moral philosophy, and which cut short all the disputes of the casuists: When in doubt if an action is good or bad, refrain.
This is my philosophy on all life, not just when it comes to love. All the best things are terrifying, but that's why they're the best things. Nothing worth having comes easy. You have to be afraid to want it, afraid to lose it, afraid to try. If you feel that, then you know you're on to a winner.
The system of Descartes... seemed to give a plausible reason for all those phenomena; and this reason seemed more just, as it is simple and intelligible to all capacities. But in philosophy, a student ought to doubt of the things he fancies he understands too easily, as much as of those he does not understand.
What is at issue is the conversion of the mind from the twilight of error to the truth, that climb up into the real world which we shall call true philosophy.
The life of theoretical philosophy is the best and happiest a man can lead. Few men are capable of it and then only intermittently. For the rest there is a second-best way of life, that of moral virtue and practical wisdom.
Every man is in his own person the whole human race without a detail lacking....I knew I should not find in any philosophy a single thought which had not passed through my own head, nor a single thought which had not passed through the heads of millions and millions of men before I was born.