Truths cannot be acquired from words out of other people's mouths. Before Truths can be internalized, they must come from one's own realizations and practices. Through a lifetime of personal practice, human beings are capable of revealing all of the secrets of the cosmic essence. You are your own best judge.
If there is one tendency of the day which more than any other is unhealthy and undesirable, it is the tendency to deify mere "smartness," unaccompanied by a sense of moral accountability. We shall never make our republic what it should be until as a people we thoroughly understand and put in practice the doctrine that success is abhorrent if attained by the sacrifice of the fundamental principles of morality.
I never have, above my signature, announced anything that I did not prove first. That is the reason why no statement of mine was ever contradicted, and I do not think it will be, because whenever I publish something I go through it first by experiment, then from experiment I calculate, and when I have the theory and practice meet I announce the results.
A gentleman considers justice to be essential in everything. He practices it according to the principles of propriety. He brings it forth in modesty and faithfully completes it. This is indeed a gentleman.
All practice or worship is only for taking off this veil. When that will go, you will find that the Sun of Absolute Knowledge is shining in Its own lustre.
If you listen to the Dhamma teachings but don't practice you're like a ladle in a soup pot. The ladle is in the soup pot every day, but it doesn't know the taste of the soup. You must reflect and meditate.
What is the relationship between spirituality and ethical practice? Since love and compassion and similar qualities all, by definition, presume some level of concern for others' well-being, they presume ethical restraint. We cannot be loving and compassionate unless at the same time we curb our own harmful impulses and desires.