The basics of any investment starts with financial education. One must be financially literate to embark on any business venture. This is the minimum entry requirement even before we begin to talk about the other key principles that have already been mentioned, like risk awareness, diversification, patience, strategic withdrawal, and others.
Having money that is not distracted by other needs is an entry point into the wider world of business known as investment.
What is investment that must be truly understood before being at the level of investment goals.
Speak the truth that the purpose of investment is to gain wealth. You can invest if money is available. If less, you can't. This is not the thinking of people who do not want to think, but this is the real talk that applies to people who have good finances.