Achievement of your happiness is the only moral purpose of your life, and that happiness, not pain or mindless self-indulgence, is the proof of your moral integrity, since it is the proof and the result of your loyalty to the achievement of your values.
The vow of celibacy is a matter of keeping one's word to Christ and the Church. a duty and a proof of the priest's inner maturity; it is the expression of his personal dignity.
In the first quarter of the nineteenth century the experimental proof for the interdependence of the composition and properties of chemical compounds resulted in the theory that they are mutually related, so that like composition governs like properties, and conversely.
It is, from another angle, an attack on requiring proof in philosophy. And it's also the case, I guess, that my temperament is to like interesting, new, bold ideas, and to try and generate them.
Atheists in our midst are proof that all consciences can be accommodated here, even those that have no ground for holding that conscience is sacred, inalienable, and prior to civil society.
Religious freedom is too sacred a right to be restricted or prohibited in any degree without convincing proof that a legitimate interest of the state is in grave danger.
Everybody believes in psychiatry; it's supposed to be for our own good. Let psychiatry prove that anybody has an illness, and I'd concede, but there is no physical proof.