I disagree. A right that is excercisable must be free of adverse consequences. Think of it like a stock option. I have right right to buy something for a higher than market price, but I would be stupid to do so. Same thing with the free speech. For instance, a formal colleague made a good point. She says that one can hold a banner at UCLA and say "we support Israel" and he will be praised and probably make some friends in the process. However if I hold a banner that says "Let's support the Palestanians!" There will be severely negative consequences and some of which may not have justifiable grounds. In essence, the consequences themselves becomes a barrier to free speech and these barriers are controlled by the invisible force called "society". This invisible force is sometimes influenced or strengthen by the ignorant media.
Angelgz: The First Amendment to the United States Constitution is a prohibition on the federal government. The First Amendment declares, in relevant part, "Congress
shall make no law . . . abridging the freedom of speech. . . ." The Supreme Court made the First Amendment applicable to the state government via the Fourteenth Amendment. That does not mean that all speech is protected. For instance, threatening another person's life and causing them to be in fear is considered conduct that the government may declare to be a crime and punish. The person who feels threatened by your conduct might petition a court (which is in the judicial branch of government) and obtain a restraining order against you.
The constitutional restriction on our federal and state governments does not apply to people. Let's look at your example about stock. If you told another person that you bought stock at a price higher than the market value, and that other person said, "that's stupid", that other person has not violated your right to free speech secured by the First Amendment. On the other hand, if the government arrested you for saying that, you might have something to complain about.
If you have an opinion on a matter that is subject to public debate, and you express that opinion through speech (either verbal or written), you can expect others to disagree or criticize your opinion. The constitution does not protect your words from being subject to the disagreement or criticism of others. Additionally, your expressed words and opinions will also enlighten other people about your character. If you engage in hate speech, other people might despise that kind of speech and express their outrage and call you names. Furthermore, if you defame someone, you might be liable in a civil court action to that person for monetary damages. You have the freedom to say whatever you want, you just don't have freedom from all possible consequences.
Read these United States Supreme Court cases and learn more:
And don't stop there ... google "freedom of speech" and keep reading and learning. Education is a wonderful thing. It gives you the tools necessary to express and defend your opinions even in the face of criticism.