In the workplace, it is important to choose between tolerance and leaving, as staying without compromise can make it difficult to stand firm. If the situation becomes unbearable, it is best to leave and find a new job. Losing a job is not a big deal, as there are always other opportunities. Sometimes, leaving a job can lead to finding a better one. 

It is essential to be tough in the workplace to succeed. Choosing to be tough does not mean being cruel to others, but rather protecting oneself and thriving. One should learn to be assertive and not always be a people pleaser. Here are three key points to keep in mind: 

1. Prioritize and protect your own interests. In the workplace, there are no permanent bosses or colleagues, only eternal interests.

It is crucial to continuously seek better opportunities and learn more for personal career development. Remember that you are there to earn money for yourself, and the company hired you to create value for them. Focus on discussing financial matters and never compromise your own interests. 

2. In the face of colleagues who harm your interests, be decisive in confronting them.

Workplace competition can lead to conflicts, especially when your progress threatens others. Some colleagues may use this as motivation to learn from you and see you as a benchmark. However, others may intentionally undermine you or speak ill of you to superiors. In such cases, do not hesitate to confront them. Some people are meant to be offended, and the more you stand up to them, the more they will be honest with you.

3. Deal with unreasonable behavior from your superiors. While there may be things to learn from bosses, it does not mean that all their actions and ideas are correct or reasonable. If your superior engages in two-faced behavior or compromises your rights, or if their actions offend your privacy and make you uncomfortable, speak up and do not remain silent. Such bosses tend to take advantage of silence.

Stand your ground, refuse unreasonable demands, and make it clear that you have principles. This will deter them from repeating similar actions in the future. 

In the workplace, it is important to build positive relationships with colleagues and superiors, but not everyone is deserving of your warmth.

Be sharp and confront those who do not deserve your kindness. Do not be polite; flip tables when necessary. Let go of the notion that the workplace is just about being kind. It is a competitive environment where you must be both warm and sharp. Stand up for yourself and be willing to express your emotions when needed.