As our case is new, we must think and act anew.
Each generation, as it seeks to advance the common good, must ask anew: 'What are the requirements that governments may reasonably impose upon citizens, and how far do they extend? By appeal to what authority can moral dilemmas be resolved?'
In the age of the individual's liquidation, the question of individuality must be raised anew.
It would be a tragic mistake for us out here to imagine that Bush represents the hearts and the minds of the majority of your countrymen. Many of your black and other compatriots must be just as anguished as we are.
As leaders, we must remember that effectively executing business plans involves a consistent engagement in activities that would typically create animosity in every other non-business relationship.
Texas, to be respected, must be polite. Santa Anna, living, can be of incalculable benefit to Texas; Santa Anna, dead, would just be another dead Mexican.
I must have read three-quarters of 'Anna Karenina' on my phone. Which might be a record.
The existing system will be quickest and most radically overthrown by the annihilation of its exponents. Therefore, massacres of the enemies of the people must be set in motion.
What is obnoxious about the motives of politicians - whatever those motives may be - is that politicians must announce their motives as visionary and grand.
From the exterior face of the wall towers must be projected, from which an approaching enemy may be annoyed by weapons, from the embrasures of those towers, right and left.
A new command I give you: Love one another. As I have loved you, so you must love one another.
There must always remain something that is antagonistic to good.
Anthropology demands the open-mindedness with which one must look and listen, record in astonishment and wonder that which one would not have been able to guess.
For the average home-user, anti-virus software is a must.
In England and, later, the United Kingdom, Habeas Corpus is a right of great antiquity: Anyone who is arrested must be brought before a court, but this does not apply in continental countries.
In this world a man must either be anvil or hammer.
An apology for the devil: it must be remembered that we have heard one side of the case. God has written all the books.
British chancellor is telling the rest of Europe it must abandon democracy. It's appalling.
Beauty must appeal to the senses, must provide us with immediate enjoyment, must impress us or insinuate itself into us without any effort on our part.
For years, my early work with Roger Penrose seemed to be a disaster for science. It showed that the universe must have begun with a singularity, if Einstein's general theory of relativity is correct. That appeared to indicate that science could not predict how the universe would begin.