The Preamble is the part of the Constitution most people recognize - up at the top. It begins "We the People." The Preamble describes who we are, what we do, and why. These 52 words are an ideal, the best of what our government can do and be.
Jefferson on the right to change one's government (1776) | Online Library of Liberty.
A Licence to Alter is the formal, written document from your landlord that gives you approval to carry out certain improvements or alterations to your leasehold property, which you need to obtain before you get started. Failure to secure a Licence to Alter will most likely result in a breach of the lease.
The alterations clause in the lease will set out what the tenant can and cannot do, and on what basis. A typical clause will prohibit some types of alterations altogether, for example structural changes or work that alters the external appearance of a building.
We hold these truths to be self-evident, that all men are created equal, that they are endowed, by their Creator, with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness.