1.
Words spoken can not be recalled so think twice before you speak.
William Shakespeare
Refrain from uttering anything hastily, and consider the implications of your words before you articulate them.
2.
The key to making money is to stay invested.
Suze Orman
4.
Every time something pops in my head, I think twice about it and I do it anyway.
Gilbert Gottfried
5.
I manage to think twice about everything / Why will they like me as they do / Or not as they do / Why will they praise me as they do / Or praise me not not as they do.
Gertrude Stein
6.
Don't think twice, it's alright.
Bob Dylan