Should be, spending money for investing really need to be wise. Do not be greedy but be objective, there are a lot of project offers high return but the most important is not that but invest in a real good project.
Being wise is a must for all investors because if you do not have this kind of personality then you won't be able to succeed your life as an investor. Spending money or rather investing really need to be wise enough in order to sustain good performances.